Fix some lingering build failures caused by fixing implicit inclusion of
if_var.h. Also explicitly include lock.h and mutex.h in if_kr.c rather than
depending on if_var.h to bring them in.
Provide a crutch that prevents watchdog to interrupt dumping
on a box with IPMI enabled.

Okay from:	jhb
Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
Rename the VMM_CTRx() family of macros to VCPU_CTRx() to highlight that these
tracepoints are vcpu-specific.

Add support for tracepoints that are global to the virtual machine - these
tracepoints are called VM_CTRx().
Make the virtual ioapic available unconditionally in a bhyve virtual machine.

This is in preparation for moving the ioapic device model from userspace to
vmm.ko.

Reviewed by:	grehan
The limit for the swap space is spelled 'swapsize', at least since
tcsh 6.17.00 import.

Submitted by:	Stefan Neudorf
PR:	bin/183480
MFC after:	1 week
The limit for the swap space is spelled 'swapsize', at least since
tcsh 6.17.00 import.

Submitted by:	Stefan Neudorf
PR:	bin/183480
MFC after:	1 week
Fix long line and record proper commit message for r257427:
Add the '-k' option for getopt() call and usage.

Submitted by:	Stefan Neudorf
PR:	bin/183494
MFC after:	1 week
Fix some types. Compilation for external target complains that "u_int"
is not idential to "uint32_t" when defining set channel prototype
functions. The WLAN channel range should be from 0 to 65535
inclusivly, and u_int should be fine for this purpose.
Remove the dependency on procfs.  Use sysctl KERN_PROC_PATHNAME and
KERN_PROC_PID to obtain the parent process pathname and command, used
to determine the calling shell.

Submitted by:	Stefan Neudorf
PR:	bin/183484
MFC after:	1 week
Fix a potential memory leak.

MFC after:	1 week
Make lpathconf(2) support optional to make it compile again on Linux.

Submitted by:	Hashem Nasarat @riseup.net
Adjust the manpage category for the pkg bootstrap
After around 20 years of duty it is time for pkg_install to retire
Allow the Arduino Leonardo to work by supporting CDC=0 devices.

CDC=0 simply means "no command codes", CDC=1 means "AT command codes."
There's no driver change required!  It's purely to tell the application
layer whether to speak AT commands or not.  Things are all still serial.

PR:		usb/183505
Reviewed by:	hps
MFC after:	1 week