build: Install .pc file in correct directory
build: Install .pc file in correct directory

/usr/share/pkgconfig should be used for architecture independent
libraries (e.g. data or scripts), while an architecture dependent
directory like /usr/lib64/pkgconfig should be used for native
binaries.

Co-authored-by: Sam James <f16bed56189e249fe4ca8ed10a1ecae60e8ceac0@gentoo.org>

richgel999/miniz,richgel999/miniz,richgel999/miniz