[media] DocBook: v4l: Fix raw bayer pixel format documentation wording

The documentation began with "The following four pixel formats"... but the
format definitions preceded this sentence. Replace it with "These four pixel
formats".

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Documentation/DocBook/media/v4l/pixfmt-srggb10.xml

@@ -17,7 +17,7 @@
       <refsect1>
 	<title>Description</title>
 
-	<para>The following four pixel formats are raw sRGB / Bayer formats with
+	<para>These four pixel formats are raw sRGB / Bayer formats with
 10 bits per colour. Each colour component is stored in a 16-bit word, with 6
 unused high bits filled with zeros. Each n-pixel row contains n/2 green samples
 and n/2 blue or red samples, with alternating red and blue rows. Bytes are

Documentation/DocBook/media/v4l/pixfmt-srggb10alaw8.xml

@@ -25,7 +25,7 @@
 	  </refnamediv>
 	  <refsect1>
 	    <title>Description</title>
-	    <para>The following four pixel formats are raw sRGB / Bayer
+	    <para>These four pixel formats are raw sRGB / Bayer
 	    formats with 10 bits per color compressed to 8 bits each,
 	    using the A-LAW algorithm. Each color component consumes 8
 	    bits of memory. In other respects this format is similar to

Documentation/DocBook/media/v4l/pixfmt-srggb10dpcm8.xml

@@ -18,7 +18,7 @@
       <refsect1>
 	<title>Description</title>
 
-	<para>The following four pixel formats are raw sRGB / Bayer formats
+	<para>These four pixel formats are raw sRGB / Bayer formats
 	with 10 bits per colour compressed to 8 bits each, using DPCM
 	compression. DPCM, differential pulse-code modulation, is lossy.
 	Each colour component consumes 8 bits of memory. In other respects

Documentation/DocBook/media/v4l/pixfmt-srggb12.xml

@@ -17,7 +17,7 @@
       <refsect1>
 	<title>Description</title>
 
-	<para>The following four pixel formats are raw sRGB / Bayer formats with
+	<para>These four pixel formats are raw sRGB / Bayer formats with
 12 bits per colour. Each colour component is stored in a 16-bit word, with 4
 unused high bits filled with zeros. Each n-pixel row contains n/2 green samples
 and n/2 blue or red samples, with alternating red and blue rows. Bytes are