Improve RTL code for RelativeLayout
Improve RTL code for RelativeLayout

- instead of passing the screen size as a constant for computing the
layout size in RTL mode, we just use a real constant. Any value would
work actually, as soon as the value would not be null.

Change-Id: If9f5b38afa88938db36a795bfc8a403ad660726b

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base