Upgrade llvm-devel and related ports to 3.3.r174891.

Install .cmake files for devel/llvm-devel so projects that use cmake can
build against the installed copy.

Sanity Test Results

devel/llvm-devel:


I could not translate the following into a dependency: 'cmake:/devel/cmake'

8 vulnerabilities affecting 24 ports have been reported in the past 14 days

^* - modified, not new

All vulnerabilities