RSE: Use a bit in DCU lock register to identify if reset is required

DCU_en signal has associated corresponding DCU_Lock signal.
It is of RW1S type. Use these bits to identify if a reset is required.

It is assumed that for the regions/domains which will require reset,
their corresponding dcu_en signals will be locked during the initial
boot.

Signed-off-by: Maulik Patel <maulik.patel@arm.com>
Change-Id: Iccac2354bf6c4acf8cb69da890a330dc1deaf2c8
1 file changed