Settings: Add bridge to PerformanceControl

Change-Id: I259323366ca0aac8b8d334bc9629dec5acc9108a

Conflicts:
	Android.mk
	AndroidManifest.xml
	res/values/custom_strings.xml
	src/com/android/settings/Settings.java

	modified:   Android.mk
	modified:   AndroidManifest.xml
	new file:   res/drawable-hdpi/ic_settings_performance.png
	new file:   res/drawable-mdpi/ic_settings_performance.png
	new file:   res/drawable-xhdpi/ic_settings_performance.png
	modified:   res/values/cr_strings.xml
	modified:   res/xml/settings_headers.xml
	modified:   src/com/android/settings/Settings.java