[PATCH] msp430: Don't use REG_UNKNOWN

[Yao Qi]

Alan Hayward <Alan.Hayward@arm.com> writes:

> Ok to commit?
>
> Alan.
>
> 2017-04-06  Alan Hayward  <alan.hayward@arm.com>
>
> 	* msp430-tdep.c (msp430_pseudo_register_read): Never return
> 	REG_UNKNOWN.

Patch is good to me.

-- 
Yao (齐尧)