char: Replace HTTP links with HTTPS ones

Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/char/Kconfig

···
 	  box (as opposed to using a serial printer; if the connector at the
 	  printer has 9 or 25 holes ["female"], then it's serial), say Y.
 	  Also read the Printing-HOWTO, available from
-	  <http://www.tldp.org/docs.html#howto>.
+	  <https://www.tldp.org/docs.html#howto>.
 
 	  It is possible to share one parallel port among several devices
 	  (e.g. printer and ZIP drive) and it is safe to compile the
···
 	depends on ISA
 	help
 	  This driver is for the DoubleTalk PC, a speech synthesizer
-	  manufactured by RC Systems (<http://www.rcsys.com/>).  It is also
+	  manufactured by RC Systems (<https://www.rcsys.com/>).  It is also
 	  called the `internal DoubleTalk'.
 
 	  To compile this driver as a module, choose M here: the
···
 	  This driver provides the kernel-side support for the intelligent
 	  fieldbus cards made by Applicom International. More information
 	  about these cards can be found on the WWW at the address
-	  <http://www.applicom-int.com/>, or by email from David Woodhouse
+	  <https://www.applicom-int.com/>, or by email from David Woodhouse
 	  <[e-mail]>.
 
 	  To compile this driver as a module, choose M here: the

drivers/misc/echo/echo.c

···
        Path Models", IEEE Transactions on communications, COM-25,
        No. 6, June
        1977.
-       http://www.rowetel.com/images/echo/dual_path_paper.pdf
+       https://www.rowetel.com/images/echo/dual_path_paper.pdf
 
    [2] The classic, very useful paper that tells you how to
        actually build a real world echo canceller:
 	 Messerschmitt, Hedberg, Cole, Haoui, Winship, "Digital Voice
 	 Echo Canceller with a TMS320020,
-	 http://www.rowetel.com/images/echo/spra129.pdf
+	 https://www.rowetel.com/images/echo/spra129.pdf
 
    [3] I have written a series of blog posts on this work, here is
        Part 1: http://www.rowetel.com/blog/?p=18
···
    [4] The source code http://svn.rowetel.com/software/oslec/
 
    [5] A nice reference on LMS filters:
-	 http://en.wikipedia.org/wiki/Least_mean_squares_filter
+	 https://en.wikipedia.org/wiki/Least_mean_squares_filter
 
    Credits:
 

drivers/misc/sram-exec.c

···
 /*
  * SRAM protect-exec region helper functions
  *
- * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
+ * Copyright (C) 2017 Texas Instruments Incorporated - https://www.ti.com/
  *	Dave Gerlach
  *
  * This program is free software; you can redistribute it and/or modify