message: Add "Release" optimization flags to Xtensa toolchain.
  These flags match the Xtensa Xplorer options for "Release" builds and speed up
  default settings.
diff: @@ -5,6 +5,8 @@ ifeq ($(TARGET), xtensa-xpg)
  # TODO(kreeger): Enable the ability to pass a different core:
  PLATFORM_ARGS = \
  --xtensa-core=hifi3_bd5 \
  + -g -O2 \
  + -fmessage-length=0 \
  -clang
  TARGET_TOOLCHAIN_PREFIX := xt-
  