Backport "cpupower: add Makefile dependencies for install targets" to stable

Hi,

Please backport the following commit back to the Linux stable kernels 5.10 and older:

commit fb7791e213a64495ec2336869b868fcd8af14346 Author: Ivan Babrou ivan@cloudflare.com Date: Mon Jan 4 15:57:18 2021 -0800 cpupower: add Makefile dependencies for install targets

This allows building cpupower in parallel rather than serially.

Signed-off-by: Ivan Babrou ivan@cloudflare.com Signed-off-by: Shuah Khan skhan@linuxfoundation.org

When I was building cpupower from kernel 5.4 using buildroot I was running into this build problem. This patch applied cleanly on top of kernel 5.4.

Hauke