presto: add standalone app Advanced Settings

only earpiece volume gain feature implemented at the moment

Change-Id: I2bcd74e4fa0b7be7d10d3ab544cf9fa14b617443
AdvancedSettings: build fix; new icon;

Change-Id: I5567197b956ebab5246a6a0bde20492f5337eeec
av: camera: Generic QCOM camera symbols

 * Several symbols declared Oppo specific are QCOM generic

Change-Id: I0a1b5742d8e4d08963cbd43e69c87609eef45b59
Merge branch 'du4.4' of https://github.com/marduk191/android_device_pantech_presto into du4.4
presto: camera: add parameter override.