arm: Re-sync ARCH_MX5 / MX51 / MX53 CONFIG options

A few boards had not been fully re-synced with CONFIG_ARCH_MX5 / CONFIG_MX51 /
CONFIG_MX53 being in Kconfig.  Do so now.

Signed-off-by: Tom Rini <trini@konsulko.com>
17 files changed