[POWERPC] Bamboo zImage wrapper

Add a bootwrapper for the AMCC 440EP Bamboo Eval board.  This also adds a
common fixup_clock function for all 440EP(x) chips.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
diff --git a/arch/powerpc/boot/4xx.h b/arch/powerpc/boot/4xx.h
index 6500842..8f26e48 100644
--- a/arch/powerpc/boot/4xx.h
+++ b/arch/powerpc/boot/4xx.h
@@ -16,5 +16,6 @@
 void ibm40x_dbcr_reset(void);
 void ibm4xx_quiesce_eth(u32 *emac0, u32 *emac1);
 void ibm4xx_fixup_ebc_ranges(const char *ebc);
+void ibm440ep_fixup_clocks(unsigned int sysclk, unsigned int ser_clk);
 
 #endif /* _POWERPC_BOOT_4XX_H_ */