[ARM] Move HZ definition into Kconfig

Move the HZ definition into Kconfig, and set appropriate defaults
for platforms.  Remove mostly empty asm/arch/param.h include file.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 32ba00b..2c63228 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -434,6 +434,13 @@
 	  Currently at least OMAP, PXA2xx and SA11x0 platforms are known
 	  to have accurate timekeeping with dynamic tick.
 
+config HZ
+	int
+	default 128 if ARCH_L7200
+	default 200 if ARCH_EBSA110 || ARCH_S3C2410
+	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER_HZ != 0
+	default 100
+
 config AEABI
 	bool "Use the ARM EABI to compile the kernel"
 	help