Thumb2 ldm/stm 'db' mnemonics don't have a '.w' suffix.
Thumb2 ldm/stm 'db' mnemonics don't have a '.w' suffix.

There is no 16-bit wide encoding, so the .w suffix isn't needed (indeed, isn't
documented as allowed). Also add the missing '!' token on the _UPD
variant.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@139243 91177308-0d34-0410-b5e6-96231b3b80d8

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