efi_loader: export a couple of protocol related functions

This is a preparatory patch.
Those functions will be used in an implementation of UEFI firmware
management protocol as part of my capsule update patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index e533a18..3b79a88 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -2106,10 +2106,10 @@
  *
  * Return: status code
  */
-static efi_status_t EFIAPI efi_close_protocol(efi_handle_t handle,
-					      const efi_guid_t *protocol,
-					      efi_handle_t agent_handle,
-					      efi_handle_t controller_handle)
+efi_status_t EFIAPI efi_close_protocol(efi_handle_t handle,
+				       const efi_guid_t *protocol,
+				       efi_handle_t agent_handle,
+				       efi_handle_t controller_handle)
 {
 	struct efi_handler *handler;
 	struct efi_open_protocol_info_item *item;
@@ -2282,7 +2282,7 @@
  *
  * Return: status code
  */
-static efi_status_t EFIAPI efi_locate_handle_buffer(
+efi_status_t EFIAPI efi_locate_handle_buffer(
 			enum efi_locate_search_type search_type,
 			const efi_guid_t *protocol, void *search_key,
 			efi_uintn_t *no_handles, efi_handle_t **buffer)
@@ -3182,9 +3182,9 @@
  *
  * Return: status code
  */
-static efi_status_t EFIAPI efi_handle_protocol(efi_handle_t handle,
-					       const efi_guid_t *protocol,
-					       void **protocol_interface)
+efi_status_t EFIAPI efi_handle_protocol(efi_handle_t handle,
+					const efi_guid_t *protocol,
+					void **protocol_interface)
 {
 	return efi_open_protocol(handle, protocol, protocol_interface, efi_root,
 				 NULL, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL);