Get rid of cmake CMP0075 policy warning
Get rid of cmake CMP0075 policy warning

Make "Include file check macros honor CMAKE_REQUIRED_LIBRARIES"
(https://cmake.org/cmake/help/git-stage/policy/CMP0075.html), avoiding
this warning message:

"Policy CMP0075 is not set: Include file check macros honor
CMAKE_REQUIRED_LIBRARIES.  Run "cmake --help-policy CMP0075" for policy
details.  Use the cmake_policy command to set the policy and suppress
this warning."

iovisor/bpftrace,iovisor/bpftrace,iovisor/bpftrace,iovisor/bpftrace