am335x/ti814x: Correct MMC_BOOT_DEVICES_START/END

Given that on TI814x we have MMC1/2 swapped, we also need to swap them
in MMC_BOOT_DEVICES_START/END

Reported-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Tom Rini <trini@ti.com>

arch/arm/include/asm/arch-am33xx/spl.h

@@ -38,6 +38,11 @@
 #define BOOT_DEVICE_CPGMAC	70
 #define BOOT_DEVICE_MMC2_2      0xFF
 
+#ifdef CONFIG_AM33XX
 #define MMC_BOOT_DEVICES_START	BOOT_DEVICE_MMC1
 #define MMC_BOOT_DEVICES_END	BOOT_DEVICE_MMC2
+#elif defined(CONFIG_TI814X)
+#define MMC_BOOT_DEVICES_START	BOOT_DEVICE_MMC2
+#define MMC_BOOT_DEVICES_END	BOOT_DEVICE_MMC1
+#endif
 #endif