omap: Fix omap_4430sdp_defconfig for make oldconfig

Commit ffb63e3402849e1b70119ee0c9a81dc9da4dfa97 changed
Kconfig to select support for omap2, 3 and 4 by default.

However, CONFIG_SMP won't currently work properly on
uniprocessor ARMs, or if support for earlier ARM cores
is selected in.

Fix this by updating omap_4430sdp_defconfig to not
select omap2 or 3 at this point.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>

arch/arm/configs/omap_4430sdp_defconfig

@@ -13,6 +13,9 @@ CONFIG_MODULE_SRCVERSION_ALL=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_ARCH_OMAP=y
 CONFIG_ARCH_OMAP4=y
+# CONFIG_ARCH_OMAP2PLUS_TYPICAL is not set
+# CONFIG_ARCH_OMAP2 is not set
+# CONFIG_ARCH_OMAP3 is not set
 # CONFIG_OMAP_MUX is not set
 CONFIG_OMAP_32K_TIMER=y
 CONFIG_OMAP_DM_TIMER=y