efi_loader: print GUIDs

Utilize printf GUID support to print GUIDs.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/lib/efi_loader/efi_variable.c b/lib/efi_loader/efi_variable.c
index 5569b3d..6c177da 100644
--- a/lib/efi_loader/efi_variable.c
+++ b/lib/efi_loader/efi_variable.c
@@ -187,7 +187,7 @@
 	const char *val, *s;
 	u32 attr;
 
-	EFI_ENTRY("%p %p %p %p %p", variable_name, vendor, attributes,
+	EFI_ENTRY("\"%ls\" %pUl %p %p %p", variable_name, vendor, attributes,
 		  data_size, data);
 
 	if (!variable_name || !vendor || !data_size)
@@ -255,7 +255,7 @@
 		unsigned long *variable_name_size,
 		s16 *variable_name, efi_guid_t *vendor)
 {
-	EFI_ENTRY("%p %p %p", variable_name_size, variable_name, vendor);
+	EFI_ENTRY("%p \"%ls\" %pUl", variable_name_size, variable_name, vendor);
 
 	return EFI_EXIT(EFI_DEVICE_ERROR);
 }
@@ -270,7 +270,7 @@
 	char *val, *s;
 	u32 attr;
 
-	EFI_ENTRY("%p %p %x %lu %p", variable_name, vendor, attributes,
+	EFI_ENTRY("\"%ls\" %pUl %x %lu %p", variable_name, vendor, attributes,
 		  data_size, data);
 
 	if (!variable_name || !vendor)