efi_loader: call EFI_EXIT in efi_copy_mem, efi_set_mem

EFI_ENTRY and EFI_EXIT calls must match.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/efi_loader/efi_boottime.c

@@ -1868,6 +1868,7 @@ static void EFIAPI efi_copy_mem(void *destination, void *source,
 {
 	EFI_ENTRY("%p, %p, %ld", destination, source, length);
 	memcpy(destination, source, length);
+	EFI_EXIT(EFI_SUCCESS);
 }
 
 /*
@@ -1885,6 +1886,7 @@ static void EFIAPI efi_set_mem(void *buffer, unsigned long size, uint8_t value)
 {
 	EFI_ENTRY("%p, %ld, 0x%x", buffer, size, value);
 	memset(buffer, value, size);
+	EFI_EXIT(EFI_SUCCESS);
 }
 
 /*