drm_hwcomposer: CI: Add more source files to the build

Build bufferinfo/BufferInfoGetter.cpp and drm/DrmPlane.cpp

Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>
diff --git a/drm/DrmPlane.cpp b/drm/DrmPlane.cpp
index 570905f..2967a7a 100644
--- a/drm/DrmPlane.cpp
+++ b/drm/DrmPlane.cpp
@@ -18,9 +18,7 @@
 
 #include "DrmPlane.h"
 
-#include <errno.h>
-#include <stdint.h>
-
+#include <algorithm>
 #include <cerrno>
 #include <cinttypes>
 #include <cstdint>