Enable 802.11a support.  Seems to work fine on:

wpi0 at pci2 dev 0 function 0 "Intel PRO/Wireless 3945ABG" rev 0x02: msi, MoW2

ok jsg@
In getdiskbyname() set partition size with DL_SETPSIZE(). Make sure
d_secperunith and p_offseth are set to 0 since they can't be read
from disktab and lower 32 bits (d_secperunit and p_offset) are read
directly from the input.
Remove some dead code.
PAGE_MASK has exactly the opposite meaning in Linux and OpenBSD.  Adjust its
usage in a currently disabled codepath to prevent future surprised.
Allow ddb to be entered from the keyboard, if glass console and ddb.console=1,
with ctrl-alt/zenmen-esc. Tested on three different keyboard models (compact
black, JIS, and full-sized) by aoyama@ and me.
Remove AUTOROOT variable which is a leftover of r1.183 of install.sub

diff from Philipp e1c1bac6253dc54a1e89ddc046585792 at osteo dot net

ok krw@ halex@
Allow initial device mappings (from pmap_table) to be backed up by BATC.
Use this on luna88k to map the bitmap planes of the frame buffer used by
the driver. 10% speedup under X.
Fix msgbuf_write() usage.
Copied from amd64..

Use an explicit suffix for the "fld" instruction to shut up clang.  The correct
instruction is fldl since we try to load a double-precision value.
GCC actually gets it wrong and emits "flds" (which is harmless).

ok guenther@
Re-organize luna88k rasops om_{copy,erase}{cols,rows} by using one
generic function, based on hp300/dev/diofb_mono.c.

This also fixes `screen is not updated when delete a character if it
is on the middle of a 32-bit word of the frame buffer' problem.

"Go for it!" miod@
The struct rt_metrics has changed, update documentation in route(4).
While there, add some missing constants.
OK claudio@
Remove unused /dev/X0 entries. ok millert@
speeling
Instead of stripping the IP options manually in icmp_reflect(),
just call ip_stripoptions().  Remove an unneeded parameter and
adjust the ip length in ip_stripoptions().
from FreeBSD; OK deraadt@ henninh@ lteo@
Delete unused `:0'.

"Good catch" miod@
Distinguish between inteldrm and radeondrm.

ok jsg@, miod@
correct some iodata strings and add ETX-US2
from ISIHARA Takanori
regen
correct some iodata strings and add ETX-US2
from ISIHARA Takanori
Sync with libdrm 2.4.47.

ok jsg@