Steve Lhomme authored Aug 22, 2022 and Jean-Baptiste Kempf committed Aug 22, 2022

LLVM ends up using the size of an unsigned int if it's used in the bitfield.
In other places the bitfields are using unsigned char which always uses the
proper size in the packed structures.

/!\ btni_t fields are kept with unsigned int as unsigned char cannot hold
10 bits. btni_t is not actually read as a packed structure. So we keep the
current format for backward compatibility.