Clean up sparc64 build.

arch/sparc64/kernel/signal.c

@@ -19,6 +19,7 @@
 #include <linux/mm.h>
 #include <linux/tty.h>
 #include <linux/smp_lock.h>
+#include <linux/binfmts.h>
 
 #include <asm/uaccess.h>
 #include <asm/bitops.h>

arch/sparc64/kernel/signal32.c

@@ -18,6 +18,7 @@
 #include <linux/mm.h>
 #include <linux/tty.h>
 #include <linux/smp_lock.h>
+#include <linux/binfmts.h>
 
 #include <asm/uaccess.h>
 #include <asm/bitops.h>

include/asm-sparc64/irq.h

@@ -12,6 +12,7 @@
 #include <linux/linkage.h>
 #include <linux/kernel.h>
 #include <asm/pil.h>
+#include <asm/ptrace.h>
 
 /* You should not mess with this directly. That's the job of irq.c.
  *