ARM: dt: mdm9625: Add Audio structures to device tree

MDM9625 uses I2C interface with codec WCD9320.
Add codec supplies, MCLK, reset GPIO information
to device tree for I2C. Add Audio DAPM route
array, devices in device tree file.

Change-Id: I20715207150c89b538627f5107049861516bcc11
Signed-off-by: Venkat Sudhir <vsudhir@codeaurora.org>