Ported: Volume adjust sound preference 2/2

Author:    StevenHarperUK <StevenHarperUK@gmail.com>
Feature : Volume adjust sound preference 1/2

Adjusting the volume makes a nice "boing" sound
Personally I find this annoying
This patch makes this a preference in
Settings | Sound
    Volume adjust sound
        Play sound when adjusting volume with hard keys

The Checkbox is defaulted to ON (1 in defaults.xml)

Look for 2/2 for the Settings, Sound Panel Change

Change-Id: Iad89a0c49288094e21824aa9c9e1bf98c29cfec3

https://github.com/CarbonDev/android_packages_apps_Settings/commit/653768aa98308fda4ad601fcc885900ae6beb71b#L0L383

	modified:   res/values/pa_strings.xml
	modified:   res/xml/sound_settings.xml
	modified:   src/com/android/settings/SoundSettings.java