hdata: Make sure reserved node name starts with "ibm, "
hdata: Make sure reserved node name starts with "ibm, "

HDAT does not provide consistent label format for reserved memory label.
Few starts with "ibm," while few other starts with component name.

Lets make sure all the reserved node name starts with "ibm,".

Reported-by: Pridhiviraj Paidipeddi <fd8ea14509c256cbd04eaa4ee745a213945e70a1@linux.vnet.ibm.com>
Signed-off-by: Vasant Hegde <a6d753843573f7bfed5075c1e875b0be8007a0ab@linux.vnet.ibm.com>
Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.vnet.ibm.com>

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