Raise error if
* more than one plain SWD DAPs are defined
* plain and multidrop DAPs are mixed
* two multidrop DAPs have the same TARGETSEL value
Inspired by Graham Sanderson's http://review.openocd.org/4935
Change-Id: I7279744464f5cc6477e50695c596be9c5e5507bf
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: https://review.openocd.org/c/openocd/+/6142
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>