mx31pdk: add CONFIG_SPL_LIBGENERIC_SUPPORT

In order to use the generic hang() later on pull libgeneric in SPL.
This has no impact on the SPL size.

Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>

include/configs/mx31pdk.h

@@ -50,6 +50,7 @@
 #define CONFIG_SPL_LDSCRIPT	"arch/$(ARCH)/cpu/u-boot-spl.lds"
 #define CONFIG_SPL_MAX_SIZE	2048
 #define CONFIG_SPL_NAND_SUPPORT
+#define CONFIG_SPL_LIBGENERIC_SUPPORT
 
 #define CONFIG_SPL_TEXT_BASE	0x87dc0000
 #define CONFIG_SYS_TEXT_BASE	0x87e00000