asm: Fix setting of LPCR:DPFD
asm: Fix setting of LPCR:DPFD

We have code to set DPFD to 4 in init_shared_sprs, from the original
commit, based on recommendations from HW.

However, we immediately override this in init_replicated_sprs with
the value 7.

So let's remove the former and update the latter to set the value
to 4.

Signed-off-by: Benjamin Herrenschmidt <a7089bb6e7e92505d88aaff006cbdd60cc9120b6@kernel.crashing.org>
Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.vnet.ibm.com>

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