pciutils: manual installation instead of using "install-lib"

As stated in the title above, having read the APKBUILD file for pciutils in alpine, I noticed the lines 36 to 41 (https://git.alpinelinux.org/aports/tree/main/pciutils/APKBUILD#n36) are manually replicating what make install-lib would do, which is a make target supported by pciutils.

Which is why I propose adding the install-lib to the make install line above.