AI 147808: add "current sdk" link using the new sdk.current variable   BUG=1790234
AI 147808: add "current sdk" link using the new sdk.current variable
  BUG=1790234

Automated import of CL 147808

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