generic_x86 builds don't need/use the sparse ext4 format.
generic_x86 builds don't need/use the sparse ext4 format.

Orig-Change-Id: I62973b131a728c3862be4642e2d49d0fa61555ac
Signed-off-by: Bruce Beare <59fda544ce74eec5943b18fdd05e82f743b9b114@intel.com>

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