ARM64: Invalid decoding of constant for predicated instructions `fadd`, `fsub`, `fsubr`, `fmul`, `fmax`, `fmaxnm`, `fmin`, `fminnm`

[Will Smith]

ARM64 Example hex: 00805865

When using cstool, the output is:
fadd z0.h, p0/m, z0.h, #0.0

when it should be:
fadd z0.h, p0/m, z0.h, #0.5

There are more instructions (listed below) that have the incorrect interpretation of the i1 field. The decoder doesn't produce valid constants for those instructions.

FADD ., /M, .,
FMAX ., /M, .,
FMAXNM ., /M, .,
FMIN ., /M, .,
FMINNM ., /M, .,
FMUL ., /M, .,
FSUB ., /M, .,
FSUBR ., /M, .,