ARM: tegra: flexible spare fuse read function

Change the spare fuse base from a definition to a variable.
It provides flexibilty to read spare fuse on different chip.

Signed-off-by: Danny Huang <dahuang@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
diff --git a/arch/arm/mach-tegra/fuse.h b/arch/arm/mach-tegra/fuse.h
index d2107b2..aef1223 100644
--- a/arch/arm/mach-tegra/fuse.h
+++ b/arch/arm/mach-tegra/fuse.h
@@ -48,5 +48,7 @@
 
 unsigned long long tegra_chip_uid(void);
 void tegra_init_fuse(void);
+bool tegra_spare_fuse(int bit);
+u32 tegra_fuse_readl(unsigned long offset);
 
 #endif