D3D11 RS - fixed two shader cache macros compile warnings.
D3D11 RS - fixed two shader cache macros compile warnings.

--HG--
branch : v1-9

jhu-lcsr-forks/ogre,jhu-lcsr-forks/ogre,jhu-lcsr-forks/ogre,jhu-lcsr-forks/ogre,jhu-lcsr-forks/ogre