hw/lpc: LPC driver use prlog rather than printf
hw/lpc: LPC driver use prlog rather than printf

Use pr_fmt macro for LPC driver log messages, changed printfs to use prlog.

Signed-off-by: Vipin K Parashar <f7dae5427b3dec859a8db9747c62b0d6fc100992@linux.vnet.ibm.com>
[ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.vnet.ibm.com: just take pr_fmt part]
Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.vnet.ibm.com>

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