hdata/memory: Removed share-id property
hdata/memory: Removed share-id property

Commit f35a3c37 (hdata/memory: Remove find_shared()) replaed find_shared()
with dt_find_name_addr(). Now we do not need PRIVATE share-id property.
Lets remove this property.

CC: Oliver O'Halloran <3dfaff8fa6ae977f042064a112a6aac576279b9b@gmail.com>
Signed-off-by: Vasant Hegde <a6d753843573f7bfed5075c1e875b0be8007a0ab@linux.vnet.ibm.com>
Reviewed-by: Oliver O'Halloran <3dfaff8fa6ae977f042064a112a6aac576279b9b@gmail.com>
Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.ibm.com>

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