fix(intel): flush dcache before sending certificate to mailbox

Due to the cache coherency issue the dcache need to flush
before sending the certificate to the mailbox

Signed-off-by: Boon Khai Ng <boon.khai.ng@intel.com>
Signed-off-by: Sieu Mun Tang <sieu.mun.tang@intel.com>
Change-Id: I39d5144519d9c7308597698b4cbea1b8aba0a849
1 file changed