Cleanup Witherspoon GPIO configure

* remove GPIO configures not used by any code
* add SOFTWARE_PGOOD
* add net-name as comments

Partially resolves openbmc/openbmc#648

Change-Id: I61f317abde182acb52841aab5b628b122c2f5546
Signed-off-by: Yi Li <adamliyi@msn.com>
1 file changed