openocd: convert 'unsigned' to 'unsigned int'

openocd: convert 'unsigned' to 'unsigned int'

Conversion done with
	checkpatch --fix-inplace -types UNSPECIFIED_INT

Ignore the cast as they could be better addressed.
Fix only minor additional checkpatch issue (spacing and line
length).

Change-Id: I4f936ffc4cedb153afa331cd293b08f4c913dc93
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/8482
Tested-by: jenkins