ARM: tegra: clock: Add forward reference to struct clk

Signed-off-by: Colin Cross <ccross@android.com>

arch/arm/mach-tegra/include/mach/clk.h

@@ -20,6 +20,8 @@
 #ifndef __MACH_CLK_H
 #define __MACH_CLK_H
 
+struct clk;
+
 void tegra_periph_reset_deassert(struct clk *c);
 void tegra_periph_reset_assert(struct clk *c);
 

arch/arm/mach-tegra/include/mach/clkdev.h

@@ -20,6 +20,8 @@
 #ifndef __MACH_CLKDEV_H
 #define __MACH_CLKDEV_H
 
+struct clk;
+
 static inline int __clk_get(struct clk *clk)
 {
 	return 1;