staging:ti dspbridge: make sure IVA2 is OFF when dev is created

Regardless the IVA2 power state before bridgedriver is
installed, the driver must ensure that IVA2 power
state is OFF when the device driver is created.

Signed-off-by: Ernesto Ramos <ernesto@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>