Build the r8a7740 Armadillo800EVA board DTB in case
of Multiplatform. The DT reference case will be removed
and can be ignored for now.
Signed-off-by: NMagnus Damm <damm+renesas@opensource.se>
Tested-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>