iommu/io-pgtable-fast: cache clean the last level ptes

While preparing page tables for fastmap, last level ptes
are not being cache cleaned. Fix this.

Change-Id: I97f894b52484d0d223b15090b94c186bba9af734
Signed-off-by: Shiraz Hashim <shashim@codeaurora.org>
1 file changed