DSS on ES2 supports only OSWR, hence remove the support
for CSWR from the powerdomain framework.
Signed-off-by: NRajendra Nayak <rnayak@ti.com>
Signed-off-by: NBenoît Cousson <b-cousson@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>