David Brownell <david-b@pacbell.net>

Fix docs on ARM11 MCR and MRC coprocessor commands:
correct read-vs-write; and describe the params.

(ARM920 and ARM926 have cp15-specific commands; this
approach is more generic.  MCR2, MRC2, MCRR, MCRR2,
MRRC, and MRRC2 instructions could also get exposed.)

git-svn-id: svn://svn.berlios.de/openocd/trunk@2679 b42882b7-edfa-0310-969c-e2dbd0fdcd60