msm: venc: add all intra encoding supports

1. Add all intra encoding capability;
2. Disable LTR, HP, Slice mode and IR settings;
3. Use WorkMode2, HQ and Pipeline 4 by force;
4. Ignore dynamic switch between IPPP and all intra;
5. Reject sessions if static/dynamic frame rate
   larger than 240;
6. Reject any non HEVC or AVC sessions;
7. Reject any HEVC Main10 profile sessions;
8. Reset all intra flag to false when stream off;

Change-Id: I9f405a7712c84bc6f8319025a7fb2a0a7f9064df
Signed-off-by: Shi Zhongbo <zhongbos@codeaurora.org>