soc: mediatek: cmdq: add address shift in jump

Add address shift when compose jump instruction
to compatible with 35bit format.

Fixes: 0858fde4 ("mailbox: cmdq: variablize address shift in platform")
Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>