x86/signal: Deinline get_sigframe, save 240 bytes

This function compiles to 277 bytes of machine code and has 4 callsites.
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Link: http://lkml.kernel.org/r/1443443037-22077-4-git-send-email-dvlasenk@redhat.comSigned-off-by: Thomas Gleixner <tglx@linutronix.de>

arch/x86/kernel/signal.c

@@ -196,7 +196,7 @@ static unsigned long align_sigframe(unsigned long sp)
 	return sp;
 }
 
-static inline void __user *
+static void __user *
 get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size,
 	     void __user **fpstate)
 {