Fix debug symbol for art_quick_throw_null_pointer_exception_from_signal

Make sure the end and start symbol names match.

Test: Fixes broken backtraces during gcstress
Change-Id: I1fa57a94fba4f74cd56975f0e2adcd4e72972e3d
diff --git a/runtime/arch/x86/quick_entrypoints_x86.S b/runtime/arch/x86/quick_entrypoints_x86.S
index bba283a..70441b7 100644
--- a/runtime/arch/x86/quick_entrypoints_x86.S
+++ b/runtime/arch/x86/quick_entrypoints_x86.S
@@ -349,7 +349,7 @@
     PUSH eax                                              // pass arg1
     call SYMBOL(artThrowNullPointerExceptionFromSignal)   // (addr, self)
     UNREACHABLE
-END_FUNCTION art_quick_throw_null_pointer_exception
+END_FUNCTION art_quick_throw_null_pointer_exception_from_signal
 
     /*
      * Called by managed code to create and deliver an ArithmeticException.