The Product Register of R-Car M3-W ES1.1 incorrectly identifies the SoC
revision as ES2.0.  Add a workaround to fix this.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>