ARM: dts: msm: Add wcd9306 device info for msmsamarium MTP

Add the routing information for the sound device.
Add the micbias information and external 5V regulator.
The changes enable audio on the MTP.

Change-Id: I0512b5e5210dd832448973f25d8e09d559a26584
Signed-off-by: Damir Didjusto <damird@codeaurora.org>