video: host: Build nvhost camera as OOT modules

Port the nvhost driver below from /kernel/nvidia to
/kernel/nvidia-oot as OOT modules and switching from
using downstream nvhost driver to upstream host1x
driver:
- capture support driver
- nvcsi driver
- vi driver
- isp driver

Change-Id: I31814f202816230029bd8454b8ff58530a96f436
Signed-off-by: Frank Chen <frankc@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2797339
Reviewed-by: Ankur Pawar <ankurp@nvidia.com>
Reviewed-by: Shiva Dubey <sdubey@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>

include/uapi/linux/nvhost_isp_ioctl.h

@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Tegra ISP Driver
+ *
+ * Copyright (c) 2016-2022, NVIDIA CORPORATION.  All rights reserved.
+ */
+
+#ifndef __UAPI_LINUX_NVHOST_ISP_IOCTL_H
+#define __UAPI_LINUX_NVHOST_ISP_IOCTL_H
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+
+#define ISP_SOFT_ISO_CLIENT 0
+#define ISP_HARD_ISO_CLIENT 1
+
+#if !defined(__KERNEL__)
+#define __user
+#endif
+
+struct isp_emc {
+	uint isp_bw;
+	uint isp_clk;
+	uint bpp_input;
+	uint bpp_output;
+};
+
+struct isp_la_bw {
+	/* Total ISP write BW in MBps, either ISO peak BW or non-ISO avg BW */
+	__u32 isp_la_bw;
+	/* is ISO or non-ISO */
+	bool is_iso;
+};
+
+#define NVHOST_ISP_IOCTL_MAGIC 'I'
+
+/*
+ * /dev/nvhost-ctrl-isp devices
+ *
+ * Opening a '/dev/nvhost-ctrl-isp' device node creates a way to send
+ * ctrl ioctl to isp driver.
+ *
+ * /dev/nvhost-isp is for channel (context specific) operations. We use
+ * /dev/nvhost-ctrl-isp for global (context independent) operations on
+ * isp device.
+ */
+
+#define NVHOST_ISP_IOCTL_SET_ISP_LA_BW \
+		_IOW(NVHOST_ISP_IOCTL_MAGIC, 4, struct isp_la_bw)
+#endif
+