MIPS: xburst: fix broken access to global_data

Fix access to global_data which is broken since commits:

commit 035cbe99cd2fd4adf9d7fd95aeebb5f814e37eb9
Author: Simon Glass <sjg@chromium.org>
Date:   Thu Dec 13 20:49:08 2012 +0000

    mips: Move per_clk and dev_clk to arch_global_data

    Move these field into arch_global_data and tidy up. The other
    CONFIG_JZSOC fields are used by various architectures, so just remove
    the #ifdef bracketing for these.

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

commit 582601da2f90b1850aa19f7820b1623c79b3dac6
Author: Simon Glass <sjg@chromium.org>
Date:   Thu Dec 13 20:48:35 2012 +0000

    arm: Move lastinc to arch_global_data

    Move this field into arch_global_data and tidy up.

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

commit 66ee69234795c0596f84b25f06b7fbc2e8ed214c
Author: Simon Glass <sjg@chromium.org>
Date:   Thu Dec 13 20:48:34 2012 +0000

    arm: Move tbl to arch_global_data

    Move this field into arch_global_data and tidy up.

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

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Xiangfu Liu <xiangfu@openmobilefree.net>

arch/mips/cpu/xburst/jz4740.c

@@ -201,10 +201,10 @@ void calc_clocks(void)
 	pllout = __cpm_get_pllout();
 
 	gd->cpu_clk = pllout / div[__cpm_get_cdiv()];
-	gd->sys_clk = pllout / div[__cpm_get_hdiv()];
-	gd->per_clk = pllout / div[__cpm_get_pdiv()];
+	gd->arch.sys_clk = pllout / div[__cpm_get_hdiv()];
+	gd->arch.per_clk = pllout / div[__cpm_get_pdiv()];
 	gd->mem_clk = pllout / div[__cpm_get_mdiv()];
-	gd->dev_clk = CONFIG_SYS_EXTAL;
+	gd->arch.dev_clk = CONFIG_SYS_EXTAL;
 }
 
 void rtc_init(void)

arch/mips/include/asm/global_data.h

@@ -32,6 +32,9 @@ struct arch_global_data {
 	/* There are other clocks in the jz4740 */
 	unsigned long per_clk;	/* Peripheral bus clock */
 	unsigned long dev_clk;	/* Device clock */
+	unsigned long sys_clk;
+	unsigned long tbl;
+	unsigned long lastinc;
 #endif
 };