Partially revert "efi_loader: Rename sections to allow for implicit data"

This partially reverts commit 7e21fbca26d18327cf7cabaad08df276a06a07d8.

That change broke sandbox EFI support for unknown reasons. It also changes
sandbox to use--gc-sections which we don't want.

For now I am just reverting the sandbox portion as presumably this change
is safe on other architectures.

Fixes: 7e21fbca26 (efi_loader: Rename sections to allow for implicit data)
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/sandbox/cpu/u-boot.lds b/arch/sandbox/cpu/u-boot.lds
index 40c2214..6a26c27 100644
--- a/arch/sandbox/cpu/u-boot.lds
+++ b/arch/sandbox/cpu/u-boot.lds
@@ -22,9 +22,8 @@
 	}
 
 	.efi_runtime : {
-		*(.text.efi_runtime*)
-		*(.rodata.efi_runtime*)
-		*(.data.efi_runtime*)
+		*(efi_runtime_text)
+		*(efi_runtime_data)
 	}
 
 	.__efi_runtime_stop : {
@@ -37,8 +36,8 @@
 	}
 
 	.efi_runtime_rel : {
-		*(.rel*.efi_runtime)
-		*(.rel*.efi_runtime.*)
+		*(.relefi_runtime_text)
+		*(.relefi_runtime_data)
 	}
 
 	.efi_runtime_rel_stop :