seccomp: allow open for x86_64 arch

BUG: 122902673
Test:
lunch sdk_gphone_x86_64-userdebug
make -j
emulator

mediaextractor should not be killed by minijail anymore

Change-Id: I0e2547376fb6e8d6a7e9316c6013cedf6a9cdeac
1 file changed