util/cbfstool: Add usage information about verbose output

Signed-off-by: Maximilian Brune <maximilian.brune@9elements.com>
Change-Id: Ica512d21d1cef8ccffbc093016c7a3bfcf901b14
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73488
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/util/cbfstool/cbfstool.c b/util/cbfstool/cbfstool.c
index a883dda..c825a13 100644
--- a/util/cbfstool/cbfstool.c
+++ b/util/cbfstool/cbfstool.c
@@ -1948,7 +1948,7 @@
 	     "  -F               Force action\n"
 	     "  -g               Generate position and alignment arguments\n"
 	     "  -U               Unprocessed; don't decompress or make ELF\n"
-	     "  -v               Provide verbose output\n"
+	     "  -v               Provide verbose output (-v=INFO -vv=DEBUG output)\n"
 	     "  -h               Display this help message\n\n"
 	     "  --ext-win-base   Base of extended decode window in host address\n"
 	     "                   space(x86 only)\n"
diff --git a/util/cbfstool/ifittool.c b/util/cbfstool/ifittool.c
index 9ea3149..d0d9431 100644
--- a/util/cbfstool/ifittool.c
+++ b/util/cbfstool/ifittool.c
@@ -50,7 +50,7 @@
 		"\tOPTIONAL ARGUMENTS:\n"
 		"\t\t-h|--help             :   Display this text\n"
 		"\t\t-H|--header-offset    :   Do not search for header, use this offset\n"
-		"\t\t-v|--verbose          :   Be verbose\n"
+		"\t\t-v|--verbose          :   Be verbose (-v=INFO -vv=DEBUG output)\n"
 		"\t\t-D|--dump             :   Dump FIT table (at end of operation)\n"
 		"\t\t-c|--clear-table      :   Remove all existing entries (do not update)\n"
 		"\t\t-j|--topswap-size     :   Use second FIT table if non zero\n"