Enable P9 to externally report checkstops.

Setup P9 to enable its checkstop GPIO so the BMC can
detect them.  The P9 is not able to set these registers
itself.

Change-Id: I4d061b16b9ef6b71e953be6aaa861ede71bcbe48
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
1 file changed