style(fwu): change the metadata fields to align with specification

Change the names of some FWU metadata structure members to have them
align with the wording used in the corresponding specification. Use
the GUID type instead of UUID as the fields described in the
specification are GUIDs. Make corresponding changes to the code that
accesses these fields. No functional changes are introduced by the
patch.

Change-Id: Id3544ed1633811b0eeee2bf99477f9b7e6667044
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
diff --git a/include/drivers/fwu/fwu_metadata.h b/include/drivers/fwu/fwu_metadata.h
index cc2c863..b441300 100644
--- a/include/drivers/fwu/fwu_metadata.h
+++ b/include/drivers/fwu/fwu_metadata.h
@@ -17,10 +17,10 @@
 #define NR_OF_MAX_FW_BANKS	4
 
 /* Properties of image in a bank */
-struct fwu_image_properties {
+struct fwu_image_bank_info {
 
-	/* UUID of the image in this bank */
-	uuid_t img_uuid;
+	/* GUID of the image in this bank */
+	struct efi_guid img_guid;
 
 	/* [0]: bit describing the image acceptance status –
 	 *      1 means the image is accepted
@@ -36,14 +36,14 @@
 /* Image entry information */
 struct fwu_image_entry {
 
-	/* UUID identifying the image type */
-	uuid_t img_type_uuid;
+	/* GUID identifying the image type */
+	struct efi_guid img_type_guid;
 
-	/* UUID of the storage volume where the image is located */
-	uuid_t location_uuid;
+	/* GUID of the storage volume where the image is located */
+	struct efi_guid location_guid;
 
-	/* Properties of images with img_type_uuid in the different FW banks */
-	struct fwu_image_properties img_props[NR_OF_FW_BANKS];
+	/* Properties of images with img_type_guid in the different FW banks */
+	struct fwu_image_bank_info img_bank_info[NR_OF_FW_BANKS];
 
 } __packed;