selftests/alsa:Fix printf format string in pcm-test.c

Inside of test_pcm_time() arguments are printed via printf
but '%d' is used to print @flags (of type unsigned int).
Use '%u' instead, just like we do everywhere else.

Signed-off-by: Zhu Jun <zhujun2@cmss.chinamobile.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://patch.msgid.link/20240626084859.4350-1-zhujun2@cmss.chinamobile.com


Signed-off-by: Takashi Iwai <tiwai@suse.de>