ARM: 6344/1: Mark CPU_32v6K as depended on CPU_V7

CPU_32v6K is selected by CPU_V7 but it only depends on CPU_V6.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>