media: docs: kAPI docs: move them to driver-api

All those documents describe the media driver API. So, move
them to the right place within the Kernel documentation.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Documentation/driver-api/media/index.rst

@@ -30,9 +30,9 @@ For more details see the file COPYING in the source distribution of Linux.
     :maxdepth: 5
     :numbered:
 
-    kapi/v4l2-core
+    v4l2-core
-    kapi/dtv-core
+    dtv-core
-    kapi/rc-core
+    rc-core
-    kapi/mc-core
+    mc-core
-    kapi/cec-core
+    cec-core
-    kapi/csi2
+    csi2

Documentation/media/index.rst

@@ -13,7 +13,7 @@ Linux Media Subsystem Documentation
    :maxdepth: 2
 
    ../userspace-api/media/index
-   media_kapi
+   ../driver-api/media/index
    dvb-drivers/index
    v4l-drivers/index
    cec-drivers/index

Documentation/media/v4l-drivers/max2175.rst

@@ -9,7 +9,7 @@ The MAX2175 driver implements the following driver-specific controls:
 -------------------------------
     Enable/Disable I2S output of the tuner. This is a private control
     that can be accessed only using the subdev interface.
-    Refer to Documentation/media/kapi/v4l2-controls.rst for more details.
+    Refer to Documentation/driver-api/media/v4l2-controls.rst for more details.
 
 .. flat-table::
     :header-rows:  0

Documentation/translations/zh_CN/video4linux/v4l2-framework.txt

@@ -1,4 +1,4 @@
-Chinese translated version of Documentation/media/media_kapi.rst
+Chinese translated version of Documentation/driver-api/media/index.rst
 
 If you have any comment or update to the content, please contact the
 original document maintainer directly.  However, if you have a problem
@@ -9,7 +9,7 @@ or if there is a problem with the translation.
 Maintainer: Mauro Carvalho Chehab <mchehab@kernel.org>
 Chinese maintainer: Fu Wei <tekkamanninja@gmail.com>
 ---------------------------------------------------------------------
-Documentation/media/media_kapi.rst 的中文翻译
+Documentation/driver-api/media/index.rst 的中文翻译
 
 如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文
 交流有困难的话，也可以向中文版维护者求助。如果本翻译更新不及时或者翻
@@ -777,7 +777,7 @@ v4l2 核心 API 提供了一个处理视频缓冲的标准方法(称为“videob
 线性 DMA(videobuf-dma-contig)以及大多用于 USB 设备的用 vmalloc
 分配的缓冲(videobuf-vmalloc)。
 
-请参阅 Documentation/media/kapi/v4l2-videobuf.rst，以获得更多关于 videobuf
+请参阅 Documentation/driver-api/media/v4l2-videobuf.rst，以获得更多关于 videobuf
 层的使用信息。
 
 v4l2_fh 结构体

MAINTAINERS

@@ -3902,7 +3902,7 @@ W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
 F:	Documentation/ABI/testing/debugfs-cec-error-inj
 F:	Documentation/devicetree/bindings/media/cec.txt
-F:	Documentation/media/kapi/cec-core.rst
+F:	Documentation/driver-api/media/cec-core.rst
 F:	Documentation/userspace-api/media/cec
 F:	drivers/media/cec/
 F:	drivers/media/rc/keymaps/rc-cec.c
@@ -5127,6 +5127,7 @@ X:	Documentation/firmware-guide/acpi/
 X:	Documentation/i2c/
 X:	Documentation/media/
 X:	Documentation/userspace-api/media/
+X:	Documentation/driver-api/media/
 X:	Documentation/power/
 X:	Documentation/spi/
 
@@ -10610,6 +10611,7 @@ T:	git git://linuxtv.org/media_tree.git
 F:	Documentation/devicetree/bindings/media/
 F:	Documentation/media/
 F:	Documentation/userspace-api/media/
+F:	Documentation/driver-api/media/
 F:	drivers/media/
 F:	drivers/staging/media/
 F:	include/linux/platform_data/media/