u8800: Update EGL blobs.

From CAF tag AU_LINUX_ANDROID_JB_VANILLA.04.02.02.060.053.
DeviceSettings: Follow the guidelines.

Only give a brief description when the option is configured in another fragment
or popup.
DeviceSettings: Add .gitignore for Android Studio.

Android Studio will be used to edit and verify source before building. The
actual build will be done by the make command.
DeviceSettings: Remove description on some settings.

No need to describe something that's clear already.
DeviceSettings: Add vibration intensity setting.

Also, modify the context usage upon restoring audio settings, now it will
write the value on startup even though the property itself is set across reboot.