amba: move to_amba_device() to use container_of_const

to_amba_device() now properly keeps the const-ness of the dev pointer
passed into it, while as before it could be lost.

Signed-off-by: Prathu Baronia <prathubaronia2011@gmail.com>
Link: https://lore.kernel.org/r/20230518134656.9559-1-prathubaronia2011@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>