staging: ti dspbridge: disable all peripherals at bridge_brd_stop

DSP Bridge needs to disable the peripheral clocks when switches to
BRD_STOPPED since that would prevent the domain to enter in OFF state.

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