hg: aarch32-port/jdk8u/hotspot: 8161495: aarch32: avoid patching site which is already patched

[snazarkin at azul.com]

Changeset: d37140bc27f3
Author:    snazarki
Date:      2016-07-20 18:57 +0300
URL:       http://hg.openjdk.java.net/aarch32-port/jdk8u/hotspot/rev/d37140bc27f3

8161495: aarch32: avoid patching site which is already patched
Reviewed-by: aph
Contributed-by: Anton Kozlov <akozlov at azul.com>

! src/cpu/aarch32/vm/nativeInst_aarch32.cpp
! src/cpu/aarch32/vm/nativeInst_aarch32.hpp
! src/share/vm/c1/c1_Runtime1.cpp