Fix incorrect relocations for x86.

These calls were not going through the PLT like they should have been.

Bug: 16853291
Change-Id: Id70488b077256a70137c4417f21be2c2d1d4341c
diff --git a/libc/arch-x86/bionic/__bionic_clone.S b/libc/arch-x86/bionic/__bionic_clone.S
index 917dc68..900ea40 100644
--- a/libc/arch-x86/bionic/__bionic_clone.S
+++ b/libc/arch-x86/bionic/__bionic_clone.S
@@ -32,7 +32,7 @@
         # An error occurred, so set errno and return -1.
         negl    %eax
         pushl   %eax
-        call    __set_errno
+        call    PIC_PLT(__set_errno)
         addl    $4, %esp
         jmp     .L_bc_return