ARM: tegra: Build warning fixes for 64-bit

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
[swarren, stripped out changes not strictly related to warnings]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/mach-tegra/ap.c b/arch/arm/mach-tegra/ap.c
index 0b94e8a..7b89c01 100644
--- a/arch/arm/mach-tegra/ap.c
+++ b/arch/arm/mach-tegra/ap.c
@@ -131,8 +131,8 @@
 	 * on BCTs for currently supported SoCs, which are locked down.
 	 * If this changes in new chips, we can revisit this algorithm.
 	 */
-
-	u32 bct_start, odmdata;
+	unsigned long bct_start;
+	u32 odmdata;
 
 	bct_start = readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BCTPTR);
 	odmdata = readl(bct_start + BCT_ODMDATA_OFFSET);