AAPT: Ignore densities specified in -c flag
AAPT: Ignore densities specified in -c flag

The --preferred-density flag knows how to handle missing resources of
specific densities. Using -c with a density leads to missing resources.

Change-Id: I2251d842f48c08ed083663bb7ed608e14c4983c8

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