ASoC: msm: return NULL if codec version is not updated

Timing issue is observed in getting the sound cardname
if machine probe is called before the codec version is
updated. So, return NULL if codec version is not updated.

CRs-Fixed: 2040140
Change-Id: I808be247917da88920278661af5de27153513e9c
Signed-off-by: Surendar karka <sukark@codeaurora.org>