cxgbe(4): Store the log2 of the # of doorbells per BAR2 page for both
ingress and egress queues, and for both T4 and T5.  These values are
used by the T4/T5 iWARP driver.
Add register definitions for the AR933x SoC GMAC (ie, ethernet MAC)
control block.

The GMAC configuration block allows for some configuration of how
the GMAC0 (ie, arge0) port is connected to the on-board switch
(if indeed there is one.)  It both can be pushed into the on-board
switch; it could also be torn out and exposed via an external
MII (and that operational mode is also controllable.)

Obtained from:	Linux/OpenWRT
Add the rest of the AR934x SoC reset register definitions.

Obtained from:	Linux/OpenWRT