futility: updater: increase verbosity on retries

To get more message for debugging, we want to increase the verbosity on
each retry.

BUG=None
TEST=build and run tests
BRANCH=None

Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Change-Id: I85e0fc518113a18bb1aaa39db3f58329d94b5ecb
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/3500326
Reviewed-by: Subrata Banik <subratabanik@chromium.org>
diff --git a/futility/updater_utils.c b/futility/updater_utils.c
index 18e4000..ce93e57 100644
--- a/futility/updater_utils.c
+++ b/futility/updater_utils.c
@@ -535,7 +535,7 @@
 	for (i = 1, r = -1; i <= retries && r != 0; i++) {
 		if (i > 1)
 			WARN("Retry reading firmware (%d/%d)...\n", i, retries);
-		r = flashrom_read_image(image, NULL, verbosity + 1);
+		r = flashrom_read_image(image, NULL, verbosity + i);
 	}
 	if (!r)
 		r = parse_firmware_image(image);
@@ -585,7 +585,7 @@
 		if (i > 1)
 			WARN("Retry writing firmware (%d/%d)...\n", i, retries);
 		r = flashrom_write_image(image, sections, diff_image, do_verify,
-					 verbosity + 1);
+					 verbosity + i);
 		/*
 		 * Force a newline to flush stdout in case if
 		 * flashrom_write_image left some messages in the buffer.