enable recovery img build for PDK
enable recovery img build for PDK

Bug: 6363041
Change-Id: I25dff887dd0946c9506926e66e0514390c20692e

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