check-package: enable for Config.in* in base dir

These files can benefit from this script to prevent common mistakes when
submitting patches.

Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

utils/check-package

@@ -44,8 +44,9 @@ def parse_args():
     return parser.parse_args()
 
 
-CONFIG_IN_FILENAME = re.compile("/Config\.\S*$")
+CONFIG_IN_FILENAME = re.compile("Config\.\S*$")
 DO_CHECK_INTREE = re.compile("|".join([
+    "Config.in",
     "arch/",
     "boot/",
     "fs/",