gpu: nvgpu: Move ctrl IOCTL creation to Linux module

Move all code related to ctrl devnode to under Linux module.

JIRA NVGPU-16

Change-Id: I834b46ec4172076d7bde459168f1e6bc8c5d6c0c
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1330802
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit

drivers/gpu/nvgpu/common/linux/ioctl_ctrl.h

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2011-2017, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef __NVGPU_IOCTL_CTRL_H__
+#define __NVGPU_IOCTL_CTRL_H__
+
+int gk20a_ctrl_dev_open(struct inode *inode, struct file *filp);
+int gk20a_ctrl_dev_release(struct inode *inode, struct file *filp);
+long gk20a_ctrl_dev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
+
+#endif