Build NEON code with -mfpu=neon

The ARM-specific NEON code needs to be built with -mfpu=neon to avoid build failures when a difference FPU is used by default by the compiler.

Fixes issue #54.

Signed-off-by: Thomas Petazzoni thomas.petazzoni-electrons.com

该提问来源于开源项目：kcat/openal-soft