x86: efi: Don't set up global_data again with EFI

Since EFI does not relocate and uses the same global_data pointer
throughout the board-init process, drop this unnecessary setup, to avoid
a hang.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/common/board_r.c b/common/board_r.c
index 6d52066..760c2d0 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -841,9 +841,8 @@
 	 * TODO(sjg@chromium.org): Consider doing this for all archs, or
 	 * dropping the new_gd parameter.
 	 */
-#if CONFIG_IS_ENABLED(X86_64)
-	arch_setup_gd(new_gd);
-#endif
+	if (CONFIG_IS_ENABLED(X86_64) && !IS_ENABLED(CONFIG_EFI_APP))
+		arch_setup_gd(new_gd);
 
 #ifdef CONFIG_NEEDS_MANUAL_RELOC
 	int i;