allow forcing HighEndGfx mode

people have already started fipping the lomRam prop to enable
transparent status bar, this will enable it with fewer
repercussions

Change-Id: Ied6de65276425fa1e7db0bf9da35f1932a355172
Merge branch 'android-4.4' of https://github.com/omnirom/android_frameworks_base into android-4.4.2
Merge branch 'android-4.4' of github.com:android-legacy/android_frameworks_base into android-4.4.2
Revert "Allow using Classic WebView"

This reverts commit 98646f08fe541a9d7af931ab7564f5ceada74033.
Merge branch 'android-4.4.2' of github.com:android-legacy/android_frameworks_base into android-4.4
Merge branch 'android-4.4' of https://github.com/omnirom/android_frameworks_base into android-4.4
Merge branch 'android-4.4' of github.com:android-legacy/android_frameworks_base into android-4.4