efi_loader: pass GUID by address to efi_dp_from_lo

We should not pass GUIDs by value as this requires copying.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/lib/efi_loader/efi_load_initrd.c b/lib/efi_loader/efi_load_initrd.c
index 67d1f75..d911354 100644
--- a/lib/efi_loader/efi_load_initrd.c
+++ b/lib/efi_loader/efi_load_initrd.c
@@ -63,7 +63,7 @@
 	 * We can then use this specific return value and not install the
 	 * protocol, while allowing the boot to continue
 	 */
-	dp = efi_get_dp_from_boot(efi_lf2_initrd_guid);
+	dp = efi_get_dp_from_boot(&efi_lf2_initrd_guid);
 	if (!dp)
 		return EFI_INVALID_PARAMETER;