arm: uniphier: fix header inclusion guard

It seems like the header inclusion guard for some Uniphier DDR PHY
header was misspelled.

Make the preprocessor symbol for the #ifndef and #define lines the
same, so that the double inclusion protection works as expected.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

arch/arm/mach-uniphier/dram/ddrphy-init.h

@@ -4,7 +4,7 @@
  */
 
 #ifndef ARCH_DDRPHY_INIT_H
-#define ARCH_DDRPHY_INTT_H
+#define ARCH_DDRPHY_INIT_H
 
 #include <linux/compiler.h>
 #include <linux/types.h>