feat(ccidx): update the do_dcsw_op function to support FEAT_CCIDX

FEAT_CCIDX modifies the register fields in CCSIDR/CCSIDR2 (aarch32)
and CCSIDR_EL1 (aarch64). This patch adds a check to the do_dcsw_op
function to use the right register format rather than assuming
that FEAT_CCIDX is not implemented.

Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: I12cd00cd7b5889525d4d2750281a751dd74ef5dc
4 files changed