Enable test cases for r2993, viz:
FADDP s_2s, d_2d 
FADDP 2d_2d_2d, 4s_4s_4s, 2s_2s_2s 
FMAX d_d, s_s 
FMIN d_d, s_s 
FMAXNM d_d, s_s (not really correct) 
FMINNM d_d, s_s (not really correct) 



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14730 a5019735-40e9-0310-863c-91ae7b9d1cf9