memory: pl353-smc: Declare variables following a reverse christmas tree order

This is a purely cosmetic change.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20210610082040.2075611-15-miquel.raynal@bootlin.com


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