Revert "Temporarily disable local unwinds on aarch64."
Revert "Temporarily disable local unwinds on aarch64."

This reverts commit 34c2265f705d8d98830a7c4b098b311c41f90bf1.

Change-Id: Ie1e31b9b5466409957d39e29e4d0958d797e2712

android-ia/platform_external_libunwind,androidarmv6/android_external_libunwind,androidarmv6/android_external_libunwind,CyanogenMod/android_external_libunwind,androidarmv6/android_external_libunwind,SyndicateRogue/libunwind,CyanogenMod/android_external_libunwind,frida/libunwind,geekboxzone/lollipop_external_libunwind,zeldin/platform_external_libunwind,frida/libunwind,android-ia/platform_external_libunwind,geekboxzone/mmallow_external_libunwind,android-ia/platform_external_libunwind,CyanogenMod/android_external_libunwind,SyndicateRogue/libunwind,frida/libunwind,geekboxzone/mmallow_external_libunwind,zeldin/platform_external_libunwind,geekboxzone/mmallow_external_libunwind,SyndicateRogue/libunwind,geekboxzone/lollipop_external_libunwind,geekboxzone/lollipop_external_libunwind,zeldin/platform_external_libunwind