mixer: Add support for TLV RW access check api

Tinyalsa doesn't expose an api to check TLV RW access

Add mixer_ctl_is_access_tlv_rw().

This api will get used by tinymix and audio HALs for checking TLV RW
access before managing the byte related mixer controls.

Upstream:
https://github.com/tinyalsa/tinyalsa/pull/92/commits/9698d03a63b89fd5a2a2d775bcfc542812da54d9

Change-Id: I65e9ad8978c666c8a4d61cad6763efe4a8bc041f
Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>
3 files changed