[ARM] Arrange for platforms to select appropriate CPU support

Rather than:

	config CPU_BLAH
		bool
		depends on ARCH_FOO || MACH_BAR
		default y if ARCH_FOO || MACH_BAR

arrange for ARCH_FOO and MACH_BAR to select CPU_BLAH directly.

Acked-by: Nicolas Pitre <nico@marvell.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Acked-by: Brian Swetland <swetland@google.com>
Acked-by: Eric Miao <eric.miao@marvell.com>
Acked-by: Nicolas Bellido <ml@acolin.be>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-omap1/Kconfig

@@ -4,16 +4,19 @@ comment "OMAP Core Type"
 config ARCH_OMAP730
 	depends on ARCH_OMAP1
 	bool "OMAP730 Based System"
+	select CPU_ARM926T
 	select ARCH_OMAP_OTG
 
 config ARCH_OMAP15XX
 	depends on ARCH_OMAP1
 	default y
 	bool "OMAP15xx Based System"
+	select CPU_ARM925T
 
 config ARCH_OMAP16XX
 	depends on ARCH_OMAP1
 	bool "OMAP16xx Based System"
+	select CPU_ARM926T
 	select ARCH_OMAP_OTG
 
 comment "OMAP Board Type"