tools/build: Add libcpupower dependency detection

Add the ability to detect the presence of libcpupower on a system to
the Makefiles in tools/build.

Link: https://lore.kernel.org/20241017140914.3200454-2-tglozar@redhat.com


Signed-off-by: Tomas Glozar <tglozar@redhat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>