Convert the mstat table from a complex structure to simple sequence
of uint64_t values, since the structure described just that and the
loop can operate over incrementing sequence of addresses just fine.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: I5f797024c76f2c18b160ac50ede9e1eac24e6652

Pull out the mstat fix array into separate file, to align the structure
of the driver with the other SoCs. No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: I2559c5ceb06505361d026ebc1b762bebe17d920b