mfd: wcd9xxx: Enhance codec detection logic to be forward compatible

So far driver claims detection only when major and major chip id are
matching with predefined table.  Amend the detection logic to support
possible unknown version of hardware by checking only chip id major when
driver doesn't have exact matching chip id table for both of major and
minor.

This will give us a capability of supporting hardware with minor changes
without software changes.

Change-Id: I7c5d1bce0c8542664b979a0fb2280ffa01f2279a
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>