topology: pre-processor: fix regular expression flags

alsa-project/alsa-utils pull request #195 was opened from aiChaoSONG:

The REG_ICASE flag is a compile-time flag (cflags), it should be used with regcomp() instead of regexec(). Also add the REG_EXTENDED flag in this patch to make patterns like 'tgl|adl' work.

Request URL : https://github.com/alsa-project/alsa-utils/pull/195 Patch URL : https://github.com/alsa-project/alsa-utils/pull/195.patch Repository URL: https://github.com/alsa-project/alsa-utils