Browsing the DTS for all the R-Car SoCs with similar part numbers
still makes my head hurt, so to improve the user friendliness of
the 32-bit ARM DTS code base include R-Car Gen1 product names for
each DTSI file.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>