drm_hwcomposer: Rework KMS composition planner + plane sharing support

Rewrite Layer-to-Plane planner. Get rid of ~200 redundant lines of code
+ added plane sharing functionality.

Closes: https://gitlab.freedesktop.org/drm-hwcomposer/drm-hwcomposer/-/issues/11
Signed-off-by: Roman Stratiienko <roman.o.stratiienko@globallogic.com>
diff --git a/Android.bp b/Android.bp
index 9236b3e..2323c47 100644
--- a/Android.bp
+++ b/Android.bp
@@ -84,9 +84,8 @@
         "bufferinfo/BufferInfoGetter.cpp",
         "bufferinfo/BufferInfoMapperMetadata.cpp",
 
-        "compositor/DrmDisplayComposition.cpp",
         "compositor/DrmDisplayCompositor.cpp",
-        "compositor/Planner.cpp",
+        "compositor/DrmKmsPlan.cpp",
 
         "drm/DrmConnector.cpp",
         "drm/DrmCrtc.cpp",