Use nativeQPLTimestamp for InitializeCore marker point
Use nativeQPLTimestamp for InitializeCore marker point

Summary: It seems like `nativePerformanceNow` might not be getting installed in time to be used by InitializeCore on Android. Using PerformanceLogger.currentTimestamp instead, which uses nativeQPLTimestamp (which is what we should be using anyway)

Reviewed By: alexeylang

Differential Revision: D12875187

fbshipit-source-id: 6eda5d2ed7948ba48c63f76b40b2014511c32494

pandiaraj44/react-native,janicduplessis/react-native,hammerandchisel/react-native,arthuralee/react-native,javache/react-native,exponentjs/react-native,hammerandchisel/react-native,myntra/react-native,facebook/react-native,janicduplessis/react-native,pandiaraj44/react-native,myntra/react-native,arthuralee/react-native,facebook/react-native,hoangpham95/react-native,janicduplessis/react-native,exponent/react-native,exponent/react-native,exponent/react-native,facebook/react-native,pandiaraj44/react-native,hammerandchisel/react-native,exponentjs/react-native,myntra/react-native,facebook/react-native,exponentjs/react-native,exponent/react-native,myntra/react-native,myntra/react-native,exponentjs/react-native,javache/react-native,pandiaraj44/react-native,hoangpham95/react-native,hoangpham95/react-native,janicduplessis/react-native,hoangpham95/react-native,hammerandchisel/react-native,javache/react-native,javache/react-native,hoangpham95/react-native,hoangpham95/react-native,javache/react-native,exponent/react-native,hoangpham95/react-native,janicduplessis/react-native,janicduplessis/react-native,javache/react-native,janicduplessis/react-native,myntra/react-native,hammerandchisel/react-native,pandiaraj44/react-native,exponent/react-native,arthuralee/react-native,arthuralee/react-native,exponentjs/react-native,myntra/react-native,hoangpham95/react-native,exponentjs/react-native,facebook/react-native,javache/react-native,hammerandchisel/react-native,exponentjs/react-native,pandiaraj44/react-native,facebook/react-native,myntra/react-native,hammerandchisel/react-native,exponent/react-native,janicduplessis/react-native,facebook/react-native,exponent/react-native,javache/react-native,javache/react-native,facebook/react-native,arthuralee/react-native,exponentjs/react-native,facebook/react-native,hammerandchisel/react-native,myntra/react-native,pandiaraj44/react-native,pandiaraj44/react-native