phb4: Avoid recursive call into run state machine
phb4: Avoid recursive call into run state machine

Currently we recursively call run_sm() in phb4_retry_state(). This is
unnecessary and overly complex.

This just returns with a small wait time. 1ms should be a very small
over head compared to having to do the actual retry.

Signed-off-by: Michael Neuling <7b0ab45a730e48a69239010b5b8fe5fa4e8eaac6@neuling.org>
Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.vnet.ibm.com>

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