vregs echo 0 test

boost	safe
gp1	safe
gp2	safe
gp3	safe
gp4	safe
gp5	safe
gp6	safe
mmc	safe
mpll	safe
msma	reboot
msmc0	safe
msmc1	freeze
msmc2	freeze
msme1	reboot
msme2	safe
msmp	poweroff
ncp	safe
pa	safe
rf	safe
rf_vco	safe
rfrx1	safe
rfrx2	scrambles display, system stays alive
rftx	display fades to black, system stays alive. echo 1 restores screen
rfubm	safe
ruim	safe
s2	safe
s3	safe
synt	safe
tcxo	safe
usb	safe
wlan	safe