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
https://golang.org/cl/2496041

src/pkg/Makefile

@@ -206,13 +206,8 @@ ifeq ($(GOARCH),arm)
 # Disable so that dashboard all.bash can catch regressions.
 NOTEST+=archive/tar
 NOTEST+=archive/zip
-NOTEST+=big
 NOTEST+=cmath
-NOTEST+=compress/gzip
-NOTEST+=compress/zlib
 NOTEST+=crypto/block
-NOTEST+=crypto/rsa
-NOTEST+=crypto/subtle
 NOTEST+=debug/dwarf
 NOTEST+=debug/elf
 NOTEST+=debug/macho
@@ -226,7 +221,6 @@ NOTEST+=go/printer
 NOTEST+=gob
 NOTEST+=http
 NOTEST+=image/png
-NOTEST+=io
 NOTEST+=json
 NOTEST+=log
 NOTEST+=math
@@ -234,14 +228,12 @@ NOTEST+=net
 NOTEST+=netchan
 NOTEST+=os
 NOTEST+=os/signal
-NOTEST+=reflect
 NOTEST+=rpc
 NOTEST+=rpc/jsonrpc
 NOTEST+=strconv
 NOTEST+=syslog
 NOTEST+=template
 NOTEST+=testing/quick
-NOTEST+=time
 NOTEST+=websocket
 NOTEST+=xml
 endif