K 10
svn:author
V 6
adrian
K 8
svn:date
V 27
2014-04-09T03:51:05.545859Z
K 7
svn:log
V 202
Add a function to check whether the given register can be accessed whilst
the chip is asleep.

It's AR5416 and later specific; I'll add a HAL method to generalise it
later.

Tested:

* AR5416, STA mode

END