ARM: davinci: multi-soc kernels require AUTO_ZRELADDR

The davinci DA8xx and DMx families have incompatible zreladdr
settings, and attempting to build a kernel with both enabled
results in an error unless AUTO_ZRELADDR is set:

multiple zreladdrs: 0xc0008000 0x80008000
This needs CONFIG_AUTO_ZRELADDR to be set

This patch changes Kconfig to make the two families mutually
exclusive when this is unset.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>

arch/arm/mach-davinci/Kconfig

@@ -32,12 +32,14 @@ config ARCH_DAVINCI_DM646x
 
 config ARCH_DAVINCI_DA830
 	bool "DA830/OMAP-L137/AM17x based system"
+	depends on !ARCH_DAVINCI_DMx || AUTO_ZRELADDR
 	select ARCH_DAVINCI_DA8XX
 	select CPU_DCACHE_WRITETHROUGH # needed on silicon revs 1.0, 1.1
 	select CP_INTC
 
 config ARCH_DAVINCI_DA850
 	bool "DA850/OMAP-L138/AM18x based system"
+	depends on !ARCH_DAVINCI_DMx || AUTO_ZRELADDR
 	select ARCH_DAVINCI_DA8XX
 	select CP_INTC