arm_adi_v5: separate ROM table parsing from command output [2/3]

arm_adi_v5: separate ROM table parsing from command output [2/3]

This change only targets the output of rtp_cs_component().
To easily propagate the coordinates of the CoreSight component,
add them in the struct that holds the register values.
While there, define a macro for the max depth of ROM tables.

Change-Id: I75e5ef4f9419da3192123aebcd61471c2af9374f
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/6820
Tested-by: jenkins