Fix CMake symbolic path and lower version requirement.

Change-Id: I7c854c0c357f480b0686b0ed12e371adca8a738f
Reviewed-on: https://swiftshader-review.googlesource.com/5354
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>
1 file changed