I add the ability to accept the default pin widget configuration to help

I add the ability to accept the default pin widget configuration to help
with various laptops using hdaa(4) sound devices.  We don't seem to know
the "correct" configurations for these devices and the defaults are far
superiour, e.g. they work if you don't nuke the default configs.

PR:	200526
Differential Revision:	https://reviews.freebsd.org/D17772