mdss: Move te parameters to dtsi file for 8x10

There may be need to fine-tune the te parameters depending on
panel. Move te parameters to panel dtsi file so that this can
be configured from panel dtsi file.

CRs-Fixed: 616178
Change-Id: I465b96f1631a96cddfa15c9c3004e3dbdcea5982
Signed-off-by: Shivaraj Shetty <shivaraj@codeaurora.org>