Remove the useless indirection in mips' __set_tls.

Change-Id: I12e9d6716c42ccbccc9a186441aca0736bb22d05
diff --git a/libc/arch-mips/syscalls/__set_tls.S b/libc/arch-mips/syscalls/__set_tls.S
new file mode 100644
index 0000000..e5b0ca2
--- /dev/null
+++ b/libc/arch-mips/syscalls/__set_tls.S
@@ -0,0 +1,19 @@
+/* Generated by gensyscalls.py. Do not edit. */
+
+#include <private/bionic_asm.h>
+
+ENTRY(__set_tls)
+    .set noreorder
+    .cpload t9
+    li v0, __NR_set_thread_area
+    syscall
+    bnez a3, 1f
+    move a0, v0
+    j ra
+    nop
+1:
+    la t9,__set_errno
+    j t9
+    nop
+    .set reorder
+END(__set_tls)