fix more thumb2 register data-processing decode bugs

- register-controlled shifts (lsl/lsr/asr/ror by register) all decoded as
  lsl: the shift type was read from hw1[6:5] (always 0 for this form)
  instead of hw0[6:5]
- 32-bit uxt*/sxt* extends read the ror amount from the wrong field
  (hw1[2:1] scaled by 4 instead of hw1[5:4] scaled by 8), so a no-rotation
  extend came back as ror #4; rotation of 0 is now omitted
- sxtab was decoded as sxtah (wrong opcode table entry)

all cases verified against binutils objdump

0 files changed, 0 insertions, 0 deletions