ppc: mpc85xx: Add 'gpibe' register to 'struct ccsr_gpio'

Without this, the DM GPIO driver for MPC8xxx does not compile for
MPC85xx SoCs.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/arch/powerpc/include/asm/immap_85xx.h b/arch/powerpc/include/asm/immap_85xx.h
index c6c0092..905613f 100644
--- a/arch/powerpc/include/asm/immap_85xx.h
+++ b/arch/powerpc/include/asm/immap_85xx.h
@@ -272,6 +272,7 @@
 	u32	gpier;
 	u32	gpimr;
 	u32	gpicr;
+	u32	gpibe;
 } ccsr_gpio_t;
 #endif