Fix assembler warnings.

clang complains if you define a symbol and _then_ make it weak, rather
than the other way round:

  /tmp/setjmp-c3c977.s:90:1: warning: sigsetjmp changed binding to STB_WEAK
  .weak sigsetjmp;
  ^

Test: treehugger
Change-Id: Iee6b0ea456bb2e92aea810ce45f171caabaa89d2
diff --git a/libc/arch-arm/bionic/__restore.S b/libc/arch-arm/bionic/__restore.S
index 5291743..c79c40a 100644
--- a/libc/arch-arm/bionic/__restore.S
+++ b/libc/arch-arm/bionic/__restore.S
@@ -47,7 +47,7 @@
   .save {r0-r15}
   .pad #32
   nop
-ENTRY_PRIVATE_NO_DWARF(__restore)
+ENTRY_NO_DWARF_PRIVATE(__restore)
   // This function must have exactly this instruction sequence.
   mov r7, #__NR_sigreturn
   swi #0
@@ -57,7 +57,7 @@
   .save {r0-r15}
   .pad #160
   nop
-ENTRY_PRIVATE_NO_DWARF(__restore_rt)
+ENTRY_NO_DWARF_PRIVATE(__restore_rt)
   // This function must have exactly this instruction sequence.
   mov r7, #__NR_rt_sigreturn
   swi #0