Add more relnotes items for 8.2R:

Add more relnotes items for 8.2R:
	CTLFLAG_RDTUNize vm.kmem_size*,
		debug.{kdb.stop_cpus,trace_on_panic}, kern.sync_on_panic,
	pxeboot(8) NFSv3 by default,
	bge(4) UDP checksum offloading bug tunable,
	bge(4) DMA bounce buffer handling improvement,
	sis(4) works on all supported platforms, WoL on DP8315,
		padding bug tunable,
	xl(4) WoL support,
	ipfw(4) netgraph + one_pass issue fixed,
	ipfw(4) ngtee action changed,
	pf(4) + TSO issue fixed,
	ahci(4) device reset timeout 10->15 seconds,
	ata(4) serverworks K2 SATA detection fixed,
	kenv boot.nfsroot.nfshandlelen added,
	more ZFS changes,
	gpart(8) better /dev/ prefix handling in command line,
	hastd(8) SIGHUP/SIGINT/SIGTERM handling,
	libarchive LZMA support,
	pax(1) off-by-one in ustar filename fixed,
	tftp(1) and tfptd(8) overhaul, and
	tzdata2010m.

Approved by:	re (implicit)

git-svn-id: svn://svn.freebsd.org/base/releng/8.2@218377 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f