powerpc/p4080ds: Move ICS refclk define into P4080DS.h

We appear to have different refclk's on the different corenet DS boards
so move the define out of the common header.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

include/configs/P4080DS.h

@@ -33,6 +33,8 @@
 #define CONFIG_SYS_NUM_FM2_10GEC	1
 #define CONFIG_NUM_DDR_CONTROLLERS	2
 
+#define CONFIG_ICS307_REFCLK_HZ		33333000  /* ICS307 ref clk freq */
+
 #define CONFIG_SYS_P4080_ERRATUM_CPU22
 #define CONFIG_SYS_P4080_ERRATUM_SERDES8
 

include/configs/corenet_ds.h

@@ -68,7 +68,6 @@
 #endif
 
 #define CONFIG_SYS_CLK_FREQ	get_board_sys_clk() /* sysclk for MPC85xx */
-#define CONFIG_ICS307_REFCLK_HZ	33333000  /* ICS307 clock chip ref freq */
 
 /*
  * These can be toggled for performance analysis, otherwise use default.