lima: set default value for depth buffer clear
According to the specs, the initial depth value for a depth buffer clear is 1. Set it, when we create a job.
Fixes the following dEQP tests:
dEQP-GLES2.functional.fbo.render.shared_depthbuffer.rbo_rgb565_depth_component16 dEQP-GLES2.functional.fbo.render.shared_depthbuffer.rbo_rgb5_a1_depth_component16 dEQP-GLES2.functional.fbo.render.shared_depthbuffer.rbo_rgb4_depth_component16 dEQP-GLES2.functional.fbo.render.shared_depthbuffer.tex2d_rgba_depth_component16 dEQP-GLES2.functional.fbo.render.shared_depthbuffer.tex2d_rgb_depth_component16
This MR implies !6816 (merged)