ARM: dts: msm: update DSI phy timings for SM8150

Update DSIPHY_T_TA_GO recommended setting in order for BTA
to work properly for any combinations of host and panel
escape clock frequencies that’s within range of DSI spec.

CRs-Fixed: 2253675
Change-Id: I1cf08f6954241844a7b8305fab46be19484c3dd9
Signed-off-by: Vara Reddy <varar@codeaurora.org>