ARM: bcm: Restrict ARCH_BCM selection to ARCH_MULTI_V6_V7
ARM: bcm: Restrict ARCH_BCM selection to ARCH_MULTI_V6_V7

Currently, Broadcom SoC options are shown whenever ARCH_MULTIPLATFORM
is enabled. Restrict this so they are only seen when ARCH_MULTI_V6_V7
variants are enabled.

Signed-off-by: Alexander Shiyan <2d24902f83da69c248f5b0282406fefa25814305@mail.ru>
[mporter: added commit log message]
Signed-off-by: Matt Porter <c1d287ff3802a4aab0e3770389ea24a33314618b@linaro.org>

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