radeonsi: add baseline for dimgrey_cavefish
As the baseline for dimgrey_cavefish is consistently deviating from sienna_cichild, adding separate baseline for Navi 23.
Additional piglit failures when compared to sienna_cichild:
spec@!opengl 1.1@windowoverlap,Fail
spec@glsl-1.30@execution@glsl-fs-continue-in-switch-in-do-while,Fail
spec@glsl-1.30@execution@glsl-vs-continue-in-switch-in-do-while,Fail
There are major differences in glcts failures too.
Edited by Ganesh Belgur Ramachandra