sh: math-emu: Add missing #include <asm/fpu.h>

arch/sh/math-emu/math.c:492:5: warning: no previous prototype for 'do_fpu_inst' [-Wmissing-prototypes]

Signed-off-by: Geert Uytterhoeven <[e-mail]>
Reviewed-by: John Paul Adrian Glaubitz <[e-mail]>
Link: https://lore.kernel.org/r/cfda1[e-mail]
Signed-off-by: John Paul Adrian Glaubitz <[e-mail]>

arch/sh/math-emu/math.c

···
 #include <linux/perf_event.h>
 
 #include <linux/uaccess.h>
+
+#include <asm/fpu.h>
 #include <asm/processor.h>
 #include <asm/io.h>