MFC 249315:
Proxy allocation requests for the PCI ROM BAR from child devices similar
to how the VGA bus driver currently proxies allocation requests for other
PCI BARs.
MFC r251109:
	Add support for tethering on the iPhone 4S

PR:	usb/179078
MFC r250462:
	Add option to lockf to avoid creating a file if it does not exist.

PR:	bin/170775
MFC 249766: Use a higher TTL (128) for DHCP packets.
MFC r227183,r229905,r250432,r250451,r250882:

	- Add missing static keywords to split(1)

	- Fix warning when compiling with gcc46:
	 error: variable 'defname' set but not use

	- Implement 'split -d' which allows a numeric suffix instead of an
	alphabetic one.

	- Bump .Dd for recent content change.
	Avoid signed overflow in error handling code.

PR:		bin/116209