app: aboot: Fix issue with address overlap check function

The address range overlap function fails to take care of boundary
condition for cases where the 'start' address of boot image begins
at the end of aboot address, causing boot up to fail.

CRs-Fixed: 561436
Change-Id: I70cc46265c0b05eff7a03ac38d84f3745b74472b
diff --git a/app/aboot/aboot.c b/app/aboot/aboot.c
index c9f763e..0115289 100755
--- a/app/aboot/aboot.c
+++ b/app/aboot/aboot.c
@@ -552,7 +552,7 @@
 	/* Check for memory overlap. */
 	if ((start < MEMBASE) && ((start + size) <= MEMBASE))
 		return 0;
-	else if (start > (MEMBASE + MEMSIZE))
+	else if (start >= (MEMBASE + MEMSIZE))
 		return 0;
 	else
 		return -1;