sh: Fix up the FPU emulation build.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/include/asm/fpu.h b/arch/sh/include/asm/fpu.h
index d7709c0..fb6bbb9 100644
--- a/arch/sh/include/asm/fpu.h
+++ b/arch/sh/include/asm/fpu.h
@@ -25,6 +25,7 @@
 #define save_fpu(tsk)		do { } while (0)
 #define release_fpu(regs)	do { } while (0)
 #define grab_fpu(regs)		do { } while (0)
+#define fpu_state_restore(regs)	do { } while (0)
 
 #endif