mbr: Correct verification check

At present this command considers the partitions to be identical if the
start and size are smaller than expected. It should check that they are
the same. Fix this and tidy up the code style a little.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/cmd/mbr.c b/cmd/mbr.c
index e7e2298..c269833 100644
--- a/cmd/mbr.c
+++ b/cmd/mbr.c
@@ -244,12 +244,12 @@
 	for (i = 0; i < count; i++) {
 		struct disk_partition p;
 
-		if (part_get_info(dev, i+1, &p))
+		if (part_get_info(dev, i + 1, &p))
 			goto fail;
 
-		if ((partitions[i].size && p.size < partitions[i].size) ||
-		    (partitions[i].start && p.start < partitions[i].start) ||
-		    (p.sys_ind != partitions[i].sys_ind))
+		if ((partitions[i].size && p.size != partitions[i].size) ||
+		    (partitions[i].start && p.start != partitions[i].start) ||
+		    p.sys_ind != partitions[i].sys_ind)
 			goto fail;
 	}
 	ret = 0;