docs: userspace-api: media: v4l: replace some characters

The conversion tools used during DocBook/LaTeX/html/Markdown->ReST
conversion and some cut-and-pasted text contain some characters that
aren't easily reachable on standard keyboards and/or could cause
troubles when parsed by the documentation build system.

Replace the occurences of the following characters:

	- U+00a0 (' '): NO-BREAK SPACE
	  as it can cause lines being truncated on PDF output
	- U+2014 ('—'): EM DASH
	- U+2019 ('’'): RIGHT SINGLE QUOTATION MARK

Note that Sphinx auto-translates '---' into EM DASH.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Documentation/userspace-api/media/v4l/biblio.rst

@@ -51,7 +51,7 @@ ISO 13818-1
 ===========
 
 
-:title:     ITU-T Rec. H.222.0 | ISO/IEC 13818-1 "Information technology — Generic coding of moving pictures and associated audio information: Systems"
+:title:     ITU-T Rec. H.222.0 | ISO/IEC 13818-1 "Information technology --- Generic coding of moving pictures and associated audio information: Systems"
 
 :author:    International Telecommunication Union (http://www.itu.ch), International Organisation for Standardisation (http://www.iso.ch)
 
@@ -61,7 +61,7 @@ ISO 13818-2
 ===========
 
 
-:title:     ITU-T Rec. H.262 | ISO/IEC 13818-2 "Information technology — Generic coding of moving pictures and associated audio information: Video"
+:title:     ITU-T Rec. H.262 | ISO/IEC 13818-2 "Information technology --- Generic coding of moving pictures and associated audio information: Video"
 
 :author:    International Telecommunication Union (http://www.itu.ch), International Organisation for Standardisation (http://www.iso.ch)
 
@@ -150,7 +150,7 @@ ITU-T.81
 ========
 
 
-:title:     ITU-T Recommendation T.81 "Information Technology — Digital Compression and Coding of Continous-Tone Still Images — Requirements and Guidelines"
+:title:     ITU-T Recommendation T.81 "Information Technology --- Digital Compression and Coding of Continous-Tone Still Images --- Requirements and Guidelines"
 
 :author:    International Telecommunication Union (http://www.itu.int)
 
@@ -310,7 +310,7 @@ ISO 12232:2006
 ==============
 
 
-:title:     Photography — Digital still cameras — Determination of exposure index, ISO speed ratings, standard output sensitivity, and recommended exposure index
+:title:     Photography --- Digital still cameras --- Determination of exposure index, ISO speed ratings, standard output sensitivity, and recommended exposure index
 
 :author:    International Organization for Standardization (http://www.iso.org)
 

Documentation/userspace-api/media/v4l/dev-decoder.rst

@@ -38,7 +38,7 @@ Conventions and Notations Used in This Document
 6. i = [a..b]: sequence of integers from a to b, inclusive, i.e. i =
    [0..2]: i = 0, 1, 2.
 
-7. Given an ``OUTPUT`` buffer A, then A’ represents a buffer on the ``CAPTURE``
+7. Given an ``OUTPUT`` buffer A, then A' represents a buffer on the ``CAPTURE``
    queue containing data that resulted from processing buffer A.
 
 .. _decoder-glossary:
@@ -288,7 +288,7 @@ Initialization
 
       Changing the ``OUTPUT`` format may change the currently set ``CAPTURE``
       format. How the new ``CAPTURE`` format is determined is up to the decoder
-      and the client must ensure it matches its needs afterwards.
+      and the client must ensure it matches its needs afterwards.
 
 2.  Allocate source (bytestream) buffers via :c:func:`VIDIOC_REQBUFS` on
     ``OUTPUT``.
@@ -874,7 +874,7 @@ it may be affected as per normal decoder operation.
 
    any of the following results on the ``CAPTURE`` queue is allowed:
 
-     {A’, B’, G’, H’}, {A’, G’, H’}, {G’, H’}.
+     {A', B', G', H'}, {A', G', H'}, {G', H'}.
 
    To determine the CAPTURE buffer containing the first decoded frame after the
    seek, the client may observe the timestamps to match the CAPTURE and OUTPUT