ARM: remove some unnecessary ifdefs, fix implicit declaration warnings
Originally committed as revision 23437 to svn://svn.ffmpeg.org/ffmpeg/trunk
Move H264 dsputil functions into their own struct
This moves the H264-specific functions from DSPContext to the newH264DSPContext. The code is made conditional on CONFIG_H264DSPwhich is set by the codecs requiring it.
The qpel and chroma MC functions are not moved as these are used by...