add timecounter, timer interrupt and plenty of debugging goop
very much work in progress
timer interrupt and IPIs
apbus attachment goop, move interrupt stuff to intr.c
pull in intr.c, attach apbus
sprinkle static
moar registers!
peripheral bus, not really tested
dwc2 attachment, doesn't do much yet
config goop for apbus and dwc2/usb
Null commit, to note that the previous commit by darrenr (which said
just "PR kern/47462") didn't even have the right PR number. The correct
number, as far as I can tell, was PR 47262.

/brick
Bump date for previous.
Let kernel config override I2C_MAX_ADDR
Add AXP806 and AXP809 power management controller drivers.
A80 reduced serial bus (RSB) support. Similar to A31 P2WI but supports
more than one attached slave device.
add RSB (awinp2wi), AXP806, AXP809 drivers
A80 specific PMU voltage initialization for GMAC
remove axp22x
fix core2, usb, rcpus sizes
if we dont have a mac address, make one up
add awinwdt