cti access is based on dap.
During cleanup, drop cti before dropping dap to guarantee that cti
can still access its dap.
Change-Id: I40c7f67d4d4a32f53802c0ce7668a5321a05893c
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6414
Tested-by: jenkins
Reviewed-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>