uboot-phytec

remoteproc: add device_to_virt ops

Introduce the device_to_virt function to allow translation between
device address (remote processor view) and virtual address (main
processor view).

Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>