kgsl-dlkm: update KGSL tip (#1623)

Update the SRCREV to point to the latest commit in the KGSL source code
repository. This update brings in few fixes:

- Correct RGMU flag checks and oob_clear API usage
- Prevent sign extension on alignments
- Revert elevating command submission thread priority
- Initialize min_render_pwrlevel for standard DT

Author: lumag

recipes-graphics/kgsl-dlkm/kgsl-dlkm_git.bb

@@ -5,7 +5,7 @@ LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://adreno.c;beginline=1;endline=1;md5=fcab174c20ea2e2bc0be64b493708266"
 
 PV = "0.0+git"
-SRCREV = "8560f4cdfc2a08995145155aa5b819375596ff53"
+SRCREV = "6aa5a97573c59f729f1451e32f3b29c16269fa20"
 SRC_URI = " \
     git://github.com/qualcomm-linux/kgsl.git;branch=gfx-kernel.le.0.0;protocol=https \
     file://kgsl.rules \