checkpatch: ignore target/hexagon/imported/* files

These files come from an external project (the hexagon archlib), so they
deliberately do not follow QEMU's coding style. To avoid false positives
from checkpatch.pl, let's disable the checking for those.

Signed-off-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Message-Id: <e3b6a345a88807a1c4daa45f638b2a90af538fd5.1663681339.git.quic_mathbern@quicinc.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

scripts/checkpatch.pl

@@ -1667,6 +1667,7 @@ sub process {
 # some scripts we imported from other projects.
 		next if ($realfile =~ /\.(s|S)$/);
 		next if ($realfile =~ /(checkpatch|get_maintainer)\.pl$/);
+		next if ($realfile =~ /^target\/hexagon\/imported\/*/);
 
 		if ($rawline =~ /^\+.*\t/) {
 			my $herevet = "$here\n" . cat_vet($rawline) . "\n";