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

This partially reverts commit 7e21fbca26.

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>

arch/sandbox/config.mk

@@ -5,9 +5,6 @@ PLATFORM_CPPFLAGS += -D__SANDBOX__ -U_FORTIFY_SOURCE
 PLATFORM_CPPFLAGS += -DCONFIG_ARCH_MAP_SYSMEM
 PLATFORM_LIBS += -lrt
 
-LDFLAGS_FINAL += --gc-sections
-PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
-
 # Define this to avoid linking with SDL, which requires SDL libraries
 # This can solve 'sdl-config: Command not found' errors
 ifneq ($(NO_SDL),)

arch/sandbox/cpu/u-boot.lds

@@ -22,9 +22,8 @@ SECTIONS
 	}
 
 	.efi_runtime : {
-		*(.text.efi_runtime*)
-		*(.rodata.efi_runtime*)
-		*(.data.efi_runtime*)
+		*(efi_runtime_text)
+		*(efi_runtime_data)
 	}
 
 	.__efi_runtime_stop : {
@@ -37,8 +36,8 @@ SECTIONS
 	}
 
 	.efi_runtime_rel : {
-		*(.rel*.efi_runtime)
-		*(.rel*.efi_runtime.*)
+		*(.relefi_runtime_text)
+		*(.relefi_runtime_data)
 	}
 
 	.efi_runtime_rel_stop :