ARM addrmode5 represents the 'U' bit of the encoding backwards.
ARM addrmode5 represents the 'U' bit of the encoding backwards.

The disassembler needs to use the AM5 factory methods instead of just
building up the immediate directly.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@141819 91177308-0d34-0410-b5e6-96231b3b80d8

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