[ramdisk] add cvitek pre-built ramdisk

Change-Id: Ic7d2046a23358129eaf621b5558984a64fa7361d

ramdisk/initramfs/glibc_riscv64/usr/include/linux/ivtvfb.h

@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
+/*
+    On Screen Display cx23415 Framebuffer driver
+
+    Copyright (C) 2006, 2007  Ian Armstrong <ian@iarmst.demon.co.uk>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef __LINUX_IVTVFB_H__
+#define __LINUX_IVTVFB_H__
+
+
+#include <linux/types.h>
+
+/* Framebuffer external API */
+
+struct ivtvfb_dma_frame {
+	void *source;
+	unsigned long dest_offset;
+	int count;
+};
+
+#define IVTVFB_IOC_DMA_FRAME 	_IOW('V', BASE_VIDIOC_PRIVATE+0, struct ivtvfb_dma_frame)
+
+#endif