cxgbe(4): bump up PF4's share of some global resources.

This increases the size of the per-port RSS slice and also allows the
driver to use a larger number of tx and rx queues.

MFC after:	2 weeks


git-svn-id: svn+ssh://svn.freebsd.org/base/head@273615 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Fix build.


git-svn-id: svn+ssh://svn.freebsd.org/base/head@273616 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f