mx6: Select CONFIG_MP with MX6_SMP

It makes sense to select the MP multi processor option at the same time we
select the other SMP options needed for SMP capable i.MX6 SoCs.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
diff --git a/arch/arm/mach-imx/mx6/Kconfig b/arch/arm/mach-imx/mx6/Kconfig
index 12d08c4..f7157ab 100644
--- a/arch/arm/mach-imx/mx6/Kconfig
+++ b/arch/arm/mach-imx/mx6/Kconfig
@@ -5,6 +5,7 @@
 	select ARM_ERRATA_761320
 	select ARM_ERRATA_794072
 	select ARM_ERRATA_845369
+	select MP
 	bool
 
 config MX6
diff --git a/include/configs/mx6_common.h b/include/configs/mx6_common.h
index 3023701..1b2961f 100644
--- a/include/configs/mx6_common.h
+++ b/include/configs/mx6_common.h
@@ -15,7 +15,6 @@
 #define CONFIG_SYS_PL310_BASE	L2_PL310_BASE
 #endif
 
-#define CONFIG_MP
 #endif
 #define CONFIG_BOARD_POSTCLK_INIT
 #define CONFIG_MXC_GPT_HCLK