am f2a1c24d: am 966c7355: am 303b3412: Add clean step for SDK version change.
am f2a1c24d: am 966c7355: am 303b3412: Add clean step for SDK version change.

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