[media] fix v4l2-selection-*.rst tables for LaTeX output

Adjust the tables there to fit inside the page margins.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

Documentation/media/uapi/v4l/v4l2-selection-flags.rst

@@ -6,6 +6,7 @@
 Selection flags
 ***************
 
+.. tabularcolumns:: |p{5.2cm}|p{2.0cm}|p{6.5cm}|p{1.2cm}|p{1.6cm}|
 
 .. _v4l2-selection-flags-table:
 

Documentation/media/uapi/v4l/v4l2-selection-targets.rst

@@ -12,6 +12,8 @@ of the two interfaces they are used.
 
 .. _v4l2-selection-targets-table:
 
+.. tabularcolumns:: |p{5.8cm}|p{1.4cm}|p{6.5cm}|p{1.2cm}|p{1.6cm}|
+
 .. flat-table:: Selection target definitions
     :header-rows:  1
     :stub-columns: 0