fix compat truncate/ftruncate

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 063cd0d..20b100f 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -284,8 +284,8 @@
 	PTR	compat_sys_old_readdir
 	PTR	sys_mips_mmap			/* 4090 */
 	PTR	sys_munmap
-	PTR	sys_truncate
-	PTR	sys_ftruncate
+	PTR	compat_sys_truncate
+	PTR	compat_sys_ftruncate
 	PTR	sys_fchmod
 	PTR	sys_fchown			/* 4095 */
 	PTR	sys_getpriority