opal/xscom: Move the delay inside xscom_reset() function.
opal/xscom: Move the delay inside xscom_reset() function.

So caller of xscom_reset() does not have to bother about adding a delay
separately. Instead caller can control whether to add a delay or not using
second argument to xscom_reset().

Signed-off-by: Mahesh Salgaonkar <6a890e1065a1d4e8df9dcf1d9a2c9c740bbcf8aa@linux.vnet.ibm.com>
Reviewed-by: Nicholas Piggin <24829078df5003d9dd1dd871ca2aeb0b1cf95ef4@gmail.com>
Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.vnet.ibm.com>

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