msm: mdss: Add support for FBC 2.0

Framebuffer commpression(FBC) 2.0 has new bit fields added to the
registers. Configure FBC registers correctly based on the dtsi
configuration. FBC 2.0 has increased the compression ratio to 1/3
and has configurable block size(in lines).

Crs-Fixed: 723612
Change-Id: Icf3c9b29d31f0e3214d6c7d525369fc7398dd9bb
Signed-off-by: Siddhartha Agrawal <agrawals@codeaurora.org>