Build libstagefright_soft_h264enc by default
Build libstagefright_soft_h264enc by default

related-to-bug: 6383440

Change-Id: I852941c72f9b7270ac6e5b094e4b2a0322643ac8

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