[MERGE #4246 @agarwal-sandeep] ARM64: InlineMathPow type specialize to float similar to ARM32
[MERGE #4246 @agarwal-sandeep] ARM64: InlineMathPow type specialize to float similar to ARM32

Merge pull request #4246 from agarwal-sandeep:armwork

Microsoft/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore