ASoC: wcd9xxx: compile codec hwdep file for wcd9xxx-v2

Hardware dependent nodes are used for used for pushing
codec calibration to codec driver. These are used in codec
drivers supported as part of wcd9xxx-v2. Add entry to compile
the hwdep source file for wcd9xxx-v2 as well.

Change-Id: I758eea32815b70ad4ccd24491ff606817c445da2
Signed-off-by: Banajit Goswami <bgoswami@codeaurora.org>