arm: stm32mp: stm32prog: add support rootfs-a for OTA

Add support of "rootfs-a" name to allow support of A/B mechanism for OTA
on rootfs.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
diff --git a/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c b/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c
index f6395ba..5b027fa 100644
--- a/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c
+++ b/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c
@@ -1157,7 +1157,8 @@
 
 			/* partition UUID */
 			uuid_bin = NULL;
-			if (!rootfs_found && !strcmp(part->name, "rootfs")) {
+			if (!rootfs_found && (!strcmp(part->name, "rootfs") ||
+					      !strcmp(part->name, "rootfs-a"))) {
 				mmc_id = part->dev_id;
 				rootfs_found = true;
 				if (mmc_id < ARRAY_SIZE(uuid_mmc))