doc-rst: linux_tv: reformat all syscall pages

The syscall pages are written to be used also as man-pages.

However, they don't match the format used by kernel-doc
generated pages from DocBook. Rewrite them to match it.

One side effect is that now all such pages at the book
will have the same format, reducing the format differences
between DVB and the other parts of the book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
diff --git a/Documentation/linux_tv/media/mediactl/media-ioc-enum-entities.rst b/Documentation/linux_tv/media/mediactl/media-ioc-enum-entities.rst
index 6e0a0c2..5d11572 100644
--- a/Documentation/linux_tv/media/mediactl/media-ioc-enum-entities.rst
+++ b/Documentation/linux_tv/media/mediactl/media-ioc-enum-entities.rst
@@ -6,17 +6,18 @@
 ioctl MEDIA_IOC_ENUM_ENTITIES
 *****************************
 
-*man MEDIA_IOC_ENUM_ENTITIES(2)*
+NAME
+====
 
-Enumerate entities and their properties
+MEDIA_IOC_ENUM_ENTITIES - Enumerate entities and their properties
 
-
-Synopsis
+SYNOPSIS
 ========
 
 .. cpp:function:: int ioctl( int fd, int request, struct media_entity_desc *argp )
 
-Arguments
+
+ARGUMENTS
 =========
 
 ``fd``
@@ -28,7 +29,7 @@
 ``argp``
 
 
-Description
+DESCRIPTION
 ===========
 
 To query the attributes of an entity, applications set the id field of a
@@ -182,8 +183,7 @@
        -
 
 
-
-Return Value
+RETURN VALUE
 ============
 
 On success 0 is returned, on error -1 and the ``errno`` variable is set