x86: efi: payload: Make EFI payload build again

Since commit 73c5c39 "Makefile: Drop unnecessary -dtb suffixes",
EFI payload does not build anymore. This fixes the build.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/lib/efi/efi_stub.c b/lib/efi/efi_stub.c
index 8b4bb4e..1814960 100644
--- a/lib/efi/efi_stub.c
+++ b/lib/efi/efi_stub.c
@@ -354,9 +354,9 @@
 	/* The EFI UART won't work now, switch to a debug one */
 	use_uart = true;
 
-	memcpy((void *)CONFIG_SYS_TEXT_BASE, _binary_u_boot_dtb_bin_start,
-	       (ulong)_binary_u_boot_dtb_bin_end -
-	       (ulong)_binary_u_boot_dtb_bin_start);
+	memcpy((void *)CONFIG_SYS_TEXT_BASE, _binary_u_boot_bin_start,
+	       (ulong)_binary_u_boot_bin_end -
+	       (ulong)_binary_u_boot_bin_start);
 
 #ifdef DEBUG
 	puts("EFI table at ");