Summary:
This PR moves and renames all references of StyleSheetPropType to DeprecatedStyleSheetPropType
Related to #21342
Pull Request resolved: https://github.com/facebook/react-native/pull/21380
Differential Revision: D10098216
Pulled By: TheSavior
fbshipit-source-id: da8d927f87bd37cdabc315e0aa17b6ae208f7124