x86/efi: Fix config_table_type array termination

Incorrect use of 0 in terminating entry of arch_tables[] causes the
following sparse warning,

  arch/x86/platform/efi/efi.c:74:27: sparse: Using plain integer as NULL pointer

Replace with NULL.

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
[ Included sparse warning in commit message. ]
Signed-off-by: Matt Fleming <matt.fleming@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index fbc1d70188f8..1d3372ac9c66 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -71,7 +71,7 @@ static __initdata efi_config_table_type_t arch_tables[] = {
 #ifdef CONFIG_X86_UV
         {UV_SYSTEM_TABLE_GUID, "UVsystab", &efi.uv_systab},
 #endif
-        {NULL_GUID, NULL, 0},
+        {NULL_GUID, NULL, NULL},
 };
 
 /*