Don't advertise the (old-style) software decoders unless they're actually present.
Don't advertise the (old-style) software decoders unless they're actually present.

Change-Id: I3753a21e1a7de86432c9c087be9d52028e3a1e1b

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