K 10
svn:author
V 4
manu
K 8
svn:date
V 27
2018-04-20T20:30:33.292494Z
K 7
svn:log
V 437
regulator: Check status before disabling

When disabling regulator when they are unused, check before is they are
enabled.
While here don't check the enable_cnt on the regulator entry as it is
checked by regnode_stop.
This solve the panic on any board using a fixed regulator that is driven
by a gpio when the regulator is unused.

Tested On: OrangePi One
Pointy Hat to:	    myself
Reported by:	kevans, Milan Obuch (freebsd-arm@dino.sk)

END