netlist opmizations are disabled on android

[tcamargo]

netlist aligned optmizations use aligned_alloc. Failing to link on android.

Probably related to android/ndk#421.

See android/ndk#1339.

Optimizations were enabled in mame-0.223: mamedev@3fcdfa0

./../../../libretro/bin/mame_mame/liboptional.a(netlist.o):netlist.cpp:function netlist_mame_analog_output_device::pre_parse_action(netlist::nlparse_t&): error: undefined reference to 'aligned_alloc'
../../../../libretro/bin/mame_mame/liboptional.a(netlist.o):netlist.cpp:function netlist_mame_logic_output_device::pre_parse_action(netlist::nlparse_t&): error: undefined reference to 'aligned_alloc'
../../../../libretro/bin/mame_mame/liboptional.a(netlist.o):netlist.cpp:function netlist_mame_stream_output_device::pre_parse_action(netlist::nlparse_t&): error: undefined reference to 'aligned_alloc'
../../../../libretro/bin/mame_mame/liboptional.a(netlist.o):netlist.cpp:function netlist_mame_device::base_validity_check(validity_checker&) const: error: undefined reference to 'aligned_alloc'
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [mame.make:517: ../../../../../mame_libretro_android.so] Error 1
make[2]: *** [Makefile:1138: mame] Error 2
make[2]: Leaving directory '/home/camargo/batocera/mame/build/projects/retro/mame/gmake-android-arm'
make[1]: *** [makefile:1288: android-arm] Error 2
make[1]: Leaving directory '/home/camargo/batocera/mame'
make: *** [Makefile.libretro:180: build] Error 2