papr SCM driver fixes
From: Oliver O'Halloran <oohall@gmail.com>
Date: 2018-12-06 15:20:08
Various bug fixes for the papr_scm driver that were found while bringing up the PowerVM implementation of the interface. There's a few minor bugs there were a result of bugs in the original QEMU implementation, a few due to the memory layouts being different and one due to a change to the DT bindings. Mostly self-contained to the driver with the exception of the last patch which touches the powerpc specific parts of the vmemmap handling.