[1.2>1.3] [MERGE #2204 @dilijev] MicroBuild v2: Fix logic in run_build.ps1 to correctly use the provided value of $binpath if it is provided.
[1.2>1.3] [MERGE #2204 @dilijev] MicroBuild v2: Fix logic in run_build.ps1 to correctly use the provided value of $binpath if it is provided.

Merge pull request #2204 from dilijev:mbv2

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