slw: Print enabled stop states
slw: Print enabled stop states

On boot, print the enabled stop states.  Output looks like:

    [   25.045201661,5] SLW: Enabling: stop0_lite
    [   25.045205017,5] SLW: Enabling: stop0
    [   25.045206549,5] SLW: Enabling: stop1_lite
    [   25.045208320,5] SLW: Enabling: stop1
    [   25.045209738,5] SLW: Enabling: stop2_lite
    [   25.045211467,5] SLW: Enabling: stop2

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

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