This patch adds half-precision floating-point rounding instructions introduced in v8.2 as part of the FEAT_FP16 feature. These are an extension of existing v8.0 floating-point rounding instructions handled in codec_v80.txt.
FRINTA <Vd>.<T>, <Vn>.<T> FRINTP <Vd>.<T>, <Vn>.<T>
FRINTA <Hd>, <Hn> FRINTP <Hd>, <Hn>
FRINTI <Vd>.<T>, <Vn>.<T> FRINTX <Vd>.<T>, <Vn>.<T>
FRINTI <Hd>, <Hn> FRINTX <Hd>, <Hn>
FRINTM <Vd>.<T>, <Vn>.<T> FRINTZ <Vd>.<T>, <Vn>.<T>
FRINTM <Hd>, <Hn> FRINTZ <Hd>, <Hn>
FRINTN <Vd>.<T>, <Vn>.<T>
FRINTN <Hd>, <Hn>Issue: #2626