davinci: DMx and da8xx defconfig updates

DMx:
- enable MMC and dm365evm_keys
- Enable DM355 and DM365 input drivers as modules.

da8xx
- combine da830 and da850 into common defconfig
- drop SYSFS_DEPRECATED flag
- auto-select D$ writethrough for da830
- enable CPUfreq and FB
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

arch/arm/mach-davinci/Kconfig

@@ -32,6 +32,7 @@ config ARCH_DAVINCI_DA830
         bool "DA830/OMAP-L137 based system"
 	select CP_INTC
 	select ARCH_DAVINCI_DA8XX
+	select CPU_DCACHE_WRITETHROUGH # needed on silicon revs 1.0, 1.1
 
 config ARCH_DAVINCI_DA850
 	bool "DA850/OMAP-L138 based system"