arm64: dts: marvell: build ESPRESSObin variants

The commit adding ESPRESSObin variants didn't include those in Makefile to
be built.

Fixes: 447b8789 ("arm64: dts: marvell: add ESPRESSObin variants")
Signed-off-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>