rh850: Add filters support

Add data buffering and receive filters support
Resolve build failure by fixing code style
issue.

CRs-Fixed: 1013185
Change-Id: I926de382d6e813c288fb7e9388f42585a4ce4670
Signed-off-by: Alex Yakavenka <ayakav@codeaurora.org>
Signed-off-by: Zou Shunxiang <shunxian@codeaurora.org>