memory: renesas-rpc-if: refactor MOIIO and IOFV macros

Don't use _HIZ macros but also provide a val. This is more consistent
with the other macros and, thus, easier to read. Also shorter.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20211119110442.4946-1-wsa+renesas@sang-engineering.com


Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>