hw/phb3: Enable ECRC on endpoints
hw/phb3: Enable ECRC on endpoints

As the ECRC is updated properly on root port, we needn't care the
setting on endpoints. This reverts commit 60ce59ccd0e9 ("hw/phb3:
Disable ECRC on Broadcom adapter behind PMC switch"), meaning ECRC
is always enabled on endpoints.

Reported-by: Mark E Schreiter <b09588b5795d1871998bff545039b762bd555d91@us.ibm.com>
Signed-off-by: Gavin Shan <0398910e4f4970259b451f0f9d0686cc5e961b81@linux.vnet.ibm.com>
Tested-by: Mark E Schreiter <b09588b5795d1871998bff545039b762bd555d91@us.ibm.com>
Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.vnet.ibm.com>

qemu/skiboot,stewart-ibm/skiboot,legoater/skiboot,legoater/skiboot,mikey/skiboot,stewart-ibm/skiboot,open-power/skiboot,legoater/skiboot,open-power/skiboot,stewart-ibm/skiboot,shenki/skiboot,legoater/skiboot,shenki/skiboot,legoater/skiboot,mikey/skiboot,shenki/skiboot,mikey/skiboot,open-power/skiboot,qemu/skiboot,qemu/skiboot,qemu/skiboot,open-power/skiboot,shenki/skiboot,qemu/skiboot,open-power/skiboot,shenki/skiboot