external/opal-prd: Set initial size value
external/opal-prd: Set initial size value

We're not initialising 'size' in handle_prd_control_run_cmd.

Signed-off-by: Jeremy Kerr <68a658b44bbaefab3ef5cd231967195fc0ff9d69@ozlabs.org>
Reviewed-by: Joel Stanley <4816dabf8db1bc6cac35b3a24cab2ff844b5b0c7@jms.id.au>
Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.vnet.ibm.com>

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