efi_loader: capitalize EFI_LOCATE_SEARCH_TYPE values

Constants should be capitalized.
So rename the values of enum efi_locate_search_type.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index b1050e5..1f0f6c3 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -934,11 +934,11 @@
 	int i;
 
 	switch (search_type) {
-	case all_handles:
+	case ALL_HANDLES:
 		return 0;
-	case by_register_notify:
+	case BY_REGISTER_NOTIFY:
 		return -1;
-	case by_protocol:
+	case BY_PROTOCOL:
 		for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
 			const efi_guid_t *guid = efiobj->protocols[i].guid;
 			if (guid && !guidcmp(guid, protocol))