Remove two duplicated named asm constraints.

This fixes compilation of libmpcodecs/vf_fspp.c with gcc and
INLINE_ASM_DIRECT_SYMBOL_REFS disabled.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@37183 b3059339-0415-0410-9bf9-f77b7e298cf2