common: Move get_OPB_freq() and get_PCI_freq() to PPC header

These should not be in common.h. Move the to an arch-specific header.

Signed-off-by: Simon Glass <sjg@chromium.org>

arch/powerpc/include/asm/ppc4xx.h

@@ -289,6 +289,9 @@ static inline void set_mcsr(u32 val)
 
 int ppc4xx_pci_sync_clock_config(u32 async);
 
+unsigned long get_OPB_freq(void);
+unsigned long get_PCI_freq(void);
+
 #endif	/* __ASSEMBLY__ */
 
 /* for multi-cpu support */

include/common.h

@@ -649,10 +649,6 @@ int	get_clocks (void);
 #if defined(CONFIG_MPC5xxx)
 int	prt_mpc5xxx_clks (void);
 #endif
-#ifdef CONFIG_4xx
-ulong	get_OPB_freq (void);
-ulong	get_PCI_freq (void);
-#endif
 #if defined(CONFIG_S3C24X0) || \
     defined(CONFIG_LH7A40X) || \
     defined(CONFIG_EP93XX)