Disable warning: the mangling of <va_list> has changed in GCC 4.4

Please see commit message of the same fix in previous GCC
  GCC 4.7 3800bda255b20023e993ed786674f70c909d60b5
  GCC 4.6 a9fcd9b1ecb8954f67738a94b8553ab234d6def5
  GCC 4.4.3 329ca6fa5d9972ad6dad8387036b4dbe9cfa1f27

Change-Id: I288f349d2140918babf3a872728da02c5706a971
Fix crash on null context in cp/mangle.c::write_unscoped_name

See related CL:
  a22b5261da70bebfad7c6f4e948501e293db172d for GCC 4.7
  737fc2a978ff2364d91e634a6b990979df60058f for GCC 4.6

Change-Id: Ic5c924fa61bd839270d0218bf5f6f25d1ace8422
Workaround for Android __cxa_finalize bug

Used to be local NDK patch at $NDK/build/tools/toolchain-patches/
gcc/0003-Work-around-for-Android-__cxa_finalize-bug.patch

See c3e4e5654d02106a19f315b736d56acb581246f9

Change-Id: I2c24a06f96cd183e9b250d22dacd2379b9f10b04
Enable assembler linker default for security

Used to be local NDK patch at $NDK/build/tools/toolchain-patches/
gcc/0009-Enable-assembler-linker-default-for-security.patch

See 7e66b0108987a56a58c6150672fe7cf8cf88e69a

Change-Id: Ia668c962b7251dd673cc028dac8a111b1aeeb47d