input: sensor: Add Gyro sensor support(mpu3050) for MSM8610 MTP.

Add device tree support in mpu3050 driver to parse and handle
sensor device configuration from DT. 'enable_gpio' is added as
the switch control for sensor vlogic power.

Change-Id: I45b5c0bf791d96646cd9ecfe4ac1038da97262e2
Signed-off-by: Richard Liu <richardl@codeaurora.org>