Delete tests of CONFIG_OF_LIBFDT when testing CONFIG_OF_BOARD_SETUP

Since CONFIG_OF_BOARD_SETUP depends on CONFIG_OF_LIBFDT:

  config OF_BOARD_SETUP
          bool "Set up board-specific details in device tree before boot"
          depends on OF_LIBFDT
          ...

remove superfluous tests of CONFIG_OF_LIBFDT when testing for
CONFIG_OF_BOARD_SETUP.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
[trini: Typo fix: s/ifdefi/ifdef/]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/powerpc/cpu/ppc4xx/fdt.c b/arch/powerpc/cpu/ppc4xx/fdt.c
index eef9c5a..c73509b 100644
--- a/arch/powerpc/cpu/ppc4xx/fdt.c
+++ b/arch/powerpc/cpu/ppc4xx/fdt.c
@@ -11,7 +11,7 @@
 #include <asm/cache.h>
 #include <asm/ppc4xx.h>
 
-#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+#ifdef CONFIG_OF_BOARD_SETUP
 #include <libfdt.h>
 #include <fdt_support.h>
 #include <asm/4xx_pcie.h>
@@ -160,4 +160,4 @@
 	 */
 	fdt_pcie_setup(blob);
 }
-#endif /* CONFIG_OF_LIBFDT && CONFIG_OF_BOARD_SETUP */
+#endif /* CONFIG_OF_BOARD_SETUP */