Benched on Ampere Altra:

hevc_h_loop_filter_chroma8_c: 367.7
hevc_h_loop_filter_chroma8_neon: 31.0
hevc_h_loop_filter_chroma10_c: 396.7
hevc_h_loop_filter_chroma10_neon: 27.5
hevc_h_loop_filter_chroma12_c: 377.0
hevc_h_loop_filter_chroma12_neon: 31.7
hevc_v_loop_filter_chroma8_c: 369.0
hevc_v_loop_filter_chroma8_neon: 55.0
hevc_v_loop_filter_chroma10_c: 389.0
hevc_v_loop_filter_chroma10_neon: 54.0
hevc_v_loop_filter_chroma12_c: 389.5
hevc_v_loop_filter_chroma12_neon: 53.0
Signed-off-by: J. Dekker <jdek@itanimul.li>