defconfig: introduce d850 defconfig

Change-Id: I4608f69fb2dc4cdbfaa1802680a3ddb7c6874907
dts: msm8974pro-lge-panel: Oversharpening fix

Change-Id: Ibe413fa4227d48b9f35d8f88e6202c7e02ebd283
(cherry picked from commit 28aee6214249ca20949870a22174f231520d84d9)