Increase java heap size.
Increase java heap size.

I got an Out of memory while compiling, Andreas Huber suggested that
increasing the heap size, which worked.

Change-Id: Id8293ef100ef814b0fe13aa6e1b891a36a2ee853

ND-3500/platform_manifest,see4ri/lolili,knone1/platform_manifest,fallouttester/platform_manifest,xorware/android_build,pranav01/platform_manifest,Hybrid-Power/startsync,xorware/android_build,xorware/android_build,xorware/android_build,RR-msm7x30/platform_manifest,hagar006/platform_manifest,xorware/android_build