arm: enable 8 more packages
arm: enable 8 more packages

The remaining failures include:

* something about bit operations?
	crypto/block
	encoding/binary

* something about file I/O?
	archive/tar
	archive/zip
	debug/dwarf
	debug/elf
	debug/macho
	image/png

* floating point
	cmath
	expvar
	flag
	fmt
	gob
	json
	math
	strconv
	template
	xml

* network (maybe fixed by a pending CL)
	http
	netchan
	rpc
	rpc/jsonrpc
	syslog
	websocket

* line numbers
	log

* haven't bothered / not sure
	exp/datafmt
	exp/eval
	go/printer
	os
	os/signal
	testing/quick

R=ken2
CC=golang-dev
http://codereview.appspot.com/2496041

gnanderson/go,h8liu/golang,dsriram/golang,dsriram/golang,tv42/old-go,ssrl/go,pombredanne/go-deleteme,apparentlymart/golang,dsriram/golang,h8liu/golang,apparentlymart/golang,gnanderson/go,h8liu/golang,ssrl/go,pombredanne/go-deleteme,pombredanne/go-deleteme,gnanderson/go,apparentlymart/golang,tv42/old-go,pombredanne/go-deleteme,tv42/old-go,ssrl/go,gnanderson/go,dsriram/golang,h8liu/golang,apparentlymart/golang,tv42/old-go,apparentlymart/golang,h8liu/golang,gnanderson/go,ssrl/go,h8liu/golang,tv42/old-go,dsriram/golang,pombredanne/go-deleteme,h8liu/golang,ssrl/go,tv42/old-go,gnanderson/go,dsriram/golang,dsriram/golang,pombredanne/go-deleteme,apparentlymart/golang,gnanderson/go,apparentlymart/golang,ssrl/go,ssrl/go,pombredanne/go-deleteme,tv42/old-go