ppc: m68k: Move i2c1_clk, i2c2_clk to arch_global_data

Move these fields into arch_global_data and tidy up. This is needed for
both ppc and m68k since they share the i2c driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/m68k/include/asm/global_data.h b/arch/m68k/include/asm/global_data.h
index fd8aacb..d9be8b1 100644
--- a/arch/m68k/include/asm/global_data.h
+++ b/arch/m68k/include/asm/global_data.h
@@ -26,6 +26,10 @@
 
 /* Architecture-specific global data */
 struct arch_global_data {
+#ifdef CONFIG_FSL_I2C
+	unsigned long	i2c1_clk;
+	unsigned long	i2c2_clk;
+#endif
 };
 
 /*
@@ -50,10 +54,6 @@
 	unsigned long	vco_clk;
 	unsigned long	flb_clk;
 #endif
-#ifdef CONFIG_FSL_I2C
-	unsigned long	i2c1_clk;
-	unsigned long	i2c2_clk;
-#endif
 	phys_size_t	ram_size;	/* RAM size */
 	unsigned long	reloc_off;	/* Relocation Offset */
 	unsigned long	reset_status;	/* reset status register at boot	*/