add some HDMI regs
PLL7 setup for HDMI on A20
work in progress HDMI driver, so far it can detect display presence and read the display EDID
Avoid a file resize serialization deadlock when writing with
PUFFS_IO_APPEND flag. The symptom was a hang when appending to
a file with a null size.
Simplify device property handling by moving it into the core driver.
Overriding the MAC address now works again.
Initialise bsciichist only once, otherwise the kern_histories list
never ends.
PUFFS fixes for size update ater write plus read/write sanity checks

- Always update kernel metadata cache for size when writing
  This fixes situation where size update after appending to a file lagged
- Make read/write nilpotent when called with null size, as FFS does
- Return EFBIG instead of EINVAL for negative offsets, as FFS does
Fix (I hope) ram size calculation.
Make sure the data in the descritors is little endian.
Use false/true on boolean, not increment.
From Henning Petersen in PR 49194.
correct softreset reg for allwinner boards
Remove rtsol(8) and rtsold(8) as their functionality is in dhcpcd(8).
Remove rtsol(8) from rc.d/network.
Add -w seconds command to ifconfig to wait for N seconds for until DAD
has finished on all addresses.
Use ifconfig -w in rc.d/network instead of a forced sleep.

As discussed on tech-net@
PR/49192: remove dup assignment.
 It's not required to print "failed to detect NVM bank" with
aprint_error_dev(). Use DPRINTF(). Same as {Free,Open}BSD.
Switch default accelmethod back to UXA until we import a stabler SNA.
Don't try and install rc.d/rtsold
- Add two more bit definitions
- XINUSE -> XGETBV
Visit the Bureau of Redundancy Department.
From Henning Petersen in PR 49191.
Use Nx.
Restore vlan_ioctl overwritten by ether_ifdetach in vlan_unconfig

This fixes PR 49112.