hikey: Add UEFI sources for reference

UEFI needs to be built outside Android build system.
Please follow the instructions in README.

The sources correspond to:
https://github.com/96boards/edk2/commit/14eae0c12e71fd33c4c0fc51e4475e8db02566cf
https://github.com/96boards/arm-trusted-firmware/commit/e9b4909dcd75fc4ae7041cfb83d28ab9adb7afdf
https://github.com/96boards/l-loader/commit/6b784ad5c4ab00e2b1c6f53cd5f74054e5d00a78
https://git.linaro.org/uefi/uefi-tools.git/commit/abe618f8ab72034fff1ce46c9c006a2c6bd40a7e

Change-Id: Ieeefdb63e673e0c8e64e0a1f02c7bddc63b2c7fb
Signed-off-by: Vishal Bhoj <vishal.bhoj@linaro.org>
diff --git a/uefi/linaro-edk2/ShellPkg/Library/UefiShellLevel3CommandsLib/Pause.c b/uefi/linaro-edk2/ShellPkg/Library/UefiShellLevel3CommandsLib/Pause.c
new file mode 100644
index 0000000..ab59706
--- /dev/null
+++ b/uefi/linaro-edk2/ShellPkg/Library/UefiShellLevel3CommandsLib/Pause.c
@@ -0,0 +1,107 @@
+/** @file

+  Main file for Pause shell level 3 function.

+

+  (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>

+  Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved. <BR>

+  This program and the accompanying materials

+  are licensed and made available under the terms and conditions of the BSD License

+  which accompanies this distribution.  The full text of the license may be found at

+  http://opensource.org/licenses/bsd-license.php

+

+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,

+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

+

+**/

+

+#include "UefiShellLevel3CommandsLib.h"

+

+STATIC CONST SHELL_PARAM_ITEM ParamList[] = {

+  {L"-q", TypeFlag},

+  {NULL, TypeMax}

+  };

+

+/**

+  Function for 'pause' command.

+

+  @param[in] ImageHandle  Handle to the Image (NULL if Internal).

+  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).

+**/

+SHELL_STATUS

+EFIAPI

+ShellCommandRunPause (

+  IN EFI_HANDLE        ImageHandle,

+  IN EFI_SYSTEM_TABLE  *SystemTable

+  )

+{

+  EFI_STATUS          Status;

+  LIST_ENTRY          *Package;

+  CHAR16              *ProblemParam;

+  SHELL_STATUS        ShellStatus;

+  SHELL_PROMPT_RESPONSE            *Resp;

+

+  ProblemParam        = NULL;

+  ShellStatus         = SHELL_SUCCESS;

+  Resp                = NULL;

+

+  //

+  // initialize the shell lib (we must be in non-auto-init...)

+  //

+  Status = ShellInitialize();

+  ASSERT_EFI_ERROR(Status);

+

+  Status = CommandInit();

+  ASSERT_EFI_ERROR(Status);

+

+  if (!gEfiShellProtocol->BatchIsActive()) {

+    ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_NO_SCRIPT), gShellLevel3HiiHandle, L"pause");  

+    return (SHELL_UNSUPPORTED);

+  }

+

+  //

+  // parse the command line

+  //

+  Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);

+  if (EFI_ERROR(Status)) {

+    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {

+      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel3HiiHandle, L"pause", ProblemParam);  

+      FreePool(ProblemParam);

+      ShellStatus = SHELL_INVALID_PARAMETER;

+    } else {

+      ASSERT(FALSE);

+    }

+  } else {

+    //

+    // check for "-?"

+    //

+    if (ShellCommandLineGetFlag(Package, L"-?")) {

+      ASSERT(FALSE);

+    } else if (ShellCommandLineGetRawValue(Package, 1) != NULL) {

+      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel3HiiHandle, L"pause");  

+      ShellStatus = SHELL_INVALID_PARAMETER;

+    } else {

+      if (!ShellCommandLineGetFlag(Package, L"-q")) {

+        Status = ShellPromptForResponseHii(ShellPromptResponseTypeQuitContinue, STRING_TOKEN (STR_PAUSE_PROMPT), gShellLevel3HiiHandle, (VOID**)&Resp);

+      } else {

+        Status = ShellPromptForResponse(ShellPromptResponseTypeQuitContinue, NULL, (VOID**)&Resp);

+      }

+

+      if (EFI_ERROR(Status) || Resp == NULL || *Resp == ShellPromptResponseQuit) {

+        ShellCommandRegisterExit(TRUE, 0);

+        ShellStatus = SHELL_ABORTED;

+      }

+

+      if (Resp != NULL) {

+        FreePool(Resp);

+      }

+    }

+

+    //

+    // free the command line package

+    //

+    ShellCommandLineFreeVarList (Package);

+  }

+

+

+  return (ShellStatus);

+}

+