libcamera: v4l2: Remove unused includes

The includes that are not used can be removed.  Also, some directly used
includes not listed are added.

Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

src/libcamera/v4l2_device.cpp

@@ -8,8 +8,6 @@
 #include "libcamera/internal/v4l2_device.h"
 
 #include <fcntl.h>
-#include <iomanip>
-#include <limits.h>
 #include <map>
 #include <stdlib.h>
 #include <string.h>

src/libcamera/v4l2_subdevice.cpp

@@ -8,7 +8,6 @@
 #include "libcamera/internal/v4l2_subdevice.h"
 
 #include <fcntl.h>
-#include <iomanip>
 #include <regex>
 #include <sstream>
 #include <string.h>

src/libcamera/v4l2_videodevice.cpp

@@ -10,7 +10,6 @@
 #include <algorithm>
 #include <array>
 #include <fcntl.h>
-#include <iomanip>
 #include <sstream>
 #include <string.h>
 #include <sys/ioctl.h>

src/v4l2/v4l2_camera.h

@@ -8,7 +8,8 @@
 #pragma once
 
 #include <deque>
-#include <utility>
+#include <memory>
+#include <vector>
 
 #include <libcamera/base/mutex.h>
 #include <libcamera/base/semaphore.h>

src/v4l2/v4l2_camera_proxy.cpp

@@ -8,7 +8,6 @@
 #include "v4l2_camera_proxy.h"
 
 #include <algorithm>
-#include <array>
 #include <errno.h>
 #include <numeric>
 #include <set>

src/v4l2/v4l2_compat.cpp

@@ -8,7 +8,6 @@
 #include "v4l2_compat_manager.h"
 
 #include <assert.h>
-#include <errno.h>
 #include <fcntl.h>
 #include <stdarg.h>
 #include <sys/ioctl.h>

src/v4l2/v4l2_compat_manager.cpp

@@ -10,7 +10,6 @@
 #include <dlfcn.h>
 #include <fcntl.h>
 #include <map>
-#include <stdarg.h>
 #include <string.h>
 #include <sys/eventfd.h>
 #include <sys/mman.h>