usb: musb: musb_cppi41: Fix the address of teardown and autoreq registers

usb: musb: musb_cppi41: Fix the address of teardown and autoreq registers

BugLink: http://bugs.launchpad.net/bugs/1731951
commit bfa53e0e366b98185fadb03f7916d1538cb90ebd upstream.

The DA8xx and DSPS platforms don't use the same address for few registers.
On Da8xx, this is causing some issues (e.g. teardown that doesn't work).
Configure the address of the register during the init and use them instead
of constants.

Reported-by: nsekhar@ti.com
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Tested-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>