pciutils: fix a do_compile failure

pciutils: fix a do_compile failure

Avoid this issue:

| ln -s libpci.so.3.1.9 libpci.so
| ln: failed to create symbolic link `libpci.so': File exists
| make[1]: *** [libpci.so] Error 1
| make[1]: Leaving directory `/srv/home/nitin/builds/build-multilib/tmp/work/x86_64-poky-linux/pciutils-3.1.9-r0/pciutils-3.1.9/lib'
| make: *** [lib/libpci.so] Error 2
| ERROR: oe_runmake failed
NOTE: package pciutils-3.1.9-r0: task do_compile: Failed

PR not bumped as there are no changes in the output packages.

Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>