26-bit ARM support was removed a long time ago, and this symbol has
been defined to be 'y' ever since. As it's never disabled anymore,
we can kill it without any side effects.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Instead of having various pieces of defconfig files for different
platforms, let's group them into a single one.
Signed-off-by: Eric Miao <eric.miao@marvell.com>