npu2: hw-procedures: Change rx_pr_phase_step value
npu2: hw-procedures: Change rx_pr_phase_step value

Change this value, per the updated programming guide.

Signed-off-by: Reza Arbab <4c896a97e6b998365c2d50a267b0f1ca5f7995de@linux.vnet.ibm.com>
Acked-By: Alistair Popple <e9adbcf81c8a36ccc628e09bc92d0e25e1c8e501@popple.id.au>
Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.vnet.ibm.com>

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