drm/etnaviv: clean up includes

Drop unused includes, move more includes from the generic etnaviv_drv.h to
the units where they are actually used, sort includes.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_dump.c b/drivers/gpu/drm/etnaviv/etnaviv_dump.c
index 9a6f5b6..55c3737 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_dump.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_dump.c
@@ -4,6 +4,8 @@
  */
 
 #include <linux/devcoredump.h>
+#include <linux/moduleparam.h>
+
 #include "etnaviv_cmdbuf.h"
 #include "etnaviv_dump.h"
 #include "etnaviv_gem.h"