ARM: mvebu: select dtbs from MACH_ARMADA_*
ARM: mvebu: select dtbs from MACH_ARMADA_*

With kirkwood migrating into mach-mvebu, mvebu_v5_defconfig needs to
select ARCH_MVEBU.  Unfortunately, this means that when building a v5
kernel, we unnecessarily build dtbs for the armada v7 boards.

To fix this, we instead select based on MACH_ARMADA_* on a per SoC basis.

Reported-by: Kevin Hilman <f9849b02abe18c1ece6bd40346458ed53f49d31b@linaro.org>
Acked-by: Kevin Hilman <f9849b02abe18c1ece6bd40346458ed53f49d31b@linaro.org>
Signed-off-by: Jason Cooper <68c46a606457643eab92053c1c05574abb26f861@lakedaemon.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs