[CinCV] mmx compile problem

[Keith Bellairs]

The compile of the cinelerracv 2.2 from git failed for me in the mpeg2enc
directory. The problem was that the mmx .s files were not included as
targets. My build worked correctly when I included the following as targets
in the Makefile:

MMX_LIBS = predcomp_mmxe.s predict_mmx.s quant_mmx.s predcomp_mmx.s
idct_mmx.s fdct_mmx.s

and then added ${MMX_LIBS} to the target list for libmpeg2enc_la_SOURCES

Sorry if this is old news.