drm_hwcomposer: Rename DrmResources to DrmDevice

DrmDevice is a better name to reflect the fact that DrmResources/
DrmDevice can handle just one dri node.

Suggested here [1] by Sean Paul.
[1] https://lists.freedesktop.org/archives/dri-devel/2018-April/173290.html

Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
diff --git a/platformhisi.h b/platformhisi.h
index a098692..4e6cc57 100644
--- a/platformhisi.h
+++ b/platformhisi.h
@@ -17,7 +17,7 @@
 #ifndef ANDROID_PLATFORM_HISI_H_
 #define ANDROID_PLATFORM_HISI_H_
 
-#include "drmresources.h"
+#include "drmdevice.h"
 #include "platform.h"
 #include "platformdrmgeneric.h"
 
@@ -29,7 +29,7 @@
 
 class HisiImporter : public DrmGenericImporter {
  public:
-  HisiImporter(DrmResources *drm);
+  HisiImporter(DrmDevice *drm);
   ~HisiImporter() override;
 
   int Init();
@@ -37,8 +37,7 @@
   int ImportBuffer(buffer_handle_t handle, hwc_drm_bo_t *bo) override;
 
  private:
-
-  DrmResources *drm_;
+  DrmDevice *drm_;
 
   const gralloc_module_t *gralloc_;
 };