[ARM] S3C24XX: Split pll code out of regs-clock.h

Move the PLL calculation code into it's own header
file for re-use with the other plat-s3c24xx based
systems such as the S3C24A0.

Note, we change the name of s3c2410_get_pll to the
more generically named s3c24xx_get_pll as well as
the related defintions.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
diff --git a/arch/arm/plat-s3c24xx/clock.c b/arch/arm/plat-s3c24xx/clock.c
index bf2633b..1ff1b98 100644
--- a/arch/arm/plat-s3c24xx/clock.c
+++ b/arch/arm/plat-s3c24xx/clock.c
@@ -49,6 +49,7 @@
 
 #include <plat/clock.h>
 #include <plat/cpu.h>
+#include <plat/pll.h>
 
 /* clock information */
 
@@ -332,7 +333,7 @@
 	/* initialise the main system clocks */
 
 	clk_xtal.rate = xtal;
-	clk_upll.rate = s3c2410_get_pll(__raw_readl(S3C2410_UPLLCON), xtal);
+	clk_upll.rate = s3c24xx_get_pll(__raw_readl(S3C2410_UPLLCON), xtal);
 
 	clk_mpll.rate = fclk;
 	clk_h.rate = hclk;