We already use g_pattern_match elsewhere so remove the duplication.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20191205122518.10010-7-alex.bennee@linaro.org>