doc-rst: linux_tv: Replace reference names to match ioctls

Due to a limitation at the DocBook language, the references
were using lowercase and slashes, instead of the name of the
ioctls. On ReST, make them identical. This will hopefully
help to cleanup the code a little bit.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
diff --git a/Documentation/linux_tv/media/v4l/vidioc-dqevent.rst b/Documentation/linux_tv/media/v4l/vidioc-dqevent.rst
index 108348e..4532099 100644
--- a/Documentation/linux_tv/media/v4l/vidioc-dqevent.rst
+++ b/Documentation/linux_tv/media/v4l/vidioc-dqevent.rst
@@ -1,6 +1,6 @@
 .. -*- coding: utf-8; mode: rst -*-
 
-.. _vidioc-dqevent:
+.. _VIDIOC_DQEVENT:
 
 ********************
 ioctl VIDIOC_DQEVENT
@@ -226,8 +226,8 @@
           :ref:`v4l2_control <v4l2-control>`.
 
           If the event is generated due to a call to
-          :ref:`VIDIOC_S_CTRL <vidioc-g-ctrl>` or
-          :ref:`VIDIOC_S_EXT_CTRLS <vidioc-g-ext-ctrls>`, then the
+          :ref:`VIDIOC_S_CTRL <VIDIOC_G_CTRL>` or
+          :ref:`VIDIOC_S_EXT_CTRLS <VIDIOC_G_EXT_CTRLS>`, then the
           event will *not* be sent to the file handle that called the ioctl
           function. This prevents nasty feedback loops. If you *do* want to
           get the event, then set the ``V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK``
@@ -363,7 +363,7 @@
 
        -  The 32-bit value of the control for 32-bit control types. This is
           0 for string controls since the value of a string cannot be passed
-          using :ref:`VIDIOC_DQEVENT <vidioc-dqevent>`.
+          using :ref:`VIDIOC_DQEVENT <VIDIOC_DQEVENT>`.
 
     -  .. row 5