MIPS: Use compat_sys_ptrace

This replaces mips's sys_ptrace32 with a compat_arch_ptrace and
enables the new generic definition of compat_sys_ptrace instead.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/ptrace.h b/include/asm-mips/ptrace.h
index 786f7e3..c00cca2 100644
--- a/include/asm-mips/ptrace.h
+++ b/include/asm-mips/ptrace.h
@@ -9,6 +9,9 @@
 #ifndef _ASM_PTRACE_H
 #define _ASM_PTRACE_H
 
+#ifdef CONFIG_64BIT
+#define __ARCH_WANT_COMPAT_SYS_PTRACE
+#endif
 
 /* 0 - 31 are integer registers, 32 - 63 are fp registers.  */
 #define FPR_BASE	32