PHB3: wait 1s after PERST deassert for CAPP adapters
PHB3: wait 1s after PERST deassert for CAPP adapters

On a re-ipl or warm reboot, Sapphire asserts and deasserts PERST to each slot.
This results in the fpga image loaded into the flash for a CAPP adapter.  HMIs
have been observed with a 200ms wait following PERST deassert, so bump time up
to 1s.  Do this for all cases because re-ipl does not preserve memory and we'd
need a mechanism for Sapphire know that there is a CAPP adapter.

We might be able to reduce this to 750ms or 500ms but need more testing.  Use
1s to be safe.  Also, phyp fw uses 1s after deassert.

Signed-off-by: Ryan Grimm <b82eecdfce19ef6c0125840b498d3afc6226dd31@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <a7089bb6e7e92505d88aaff006cbdd60cc9120b6@kernel.crashing.org>

cyrilbur-ibm/skiboot,neelegup/skiboot,legoater/skiboot,shenki/skiboot,jk-ozlabs/skiboot,qemu/skiboot,shenki/skiboot,csmart/skiboot,qemu/skiboot,stewart-ibm/skiboot,stewart-ibm/skiboot,stewart-ibm/skiboot,csmart/skiboot,mikey/skiboot,cyrilbur-ibm/skiboot,csmart/skiboot,ddstreet/skiboot,cyrilbur-ibm/skiboot,neelegup/skiboot,legoater/skiboot,open-power/skiboot,ddstreet/skiboot,mikey/skiboot,open-power/skiboot,jk-ozlabs/skiboot,ddstreet/skiboot,shenki/skiboot,apopple/skiboot,qemu/skiboot,qemu/skiboot,qemu/skiboot,legoater/skiboot,open-power/skiboot,legoater/skiboot,jk-ozlabs/skiboot,apopple/skiboot,neelegup/skiboot,shenki/skiboot,open-power/skiboot,shenki/skiboot,legoater/skiboot,mikey/skiboot,open-power/skiboot,apopple/skiboot