SPI SUBSYSTEM: 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 <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200708194400.22213-1-grandmaster@al2klimov.de
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/Documentation/spi/spi-sc18is602.rst b/Documentation/spi/spi-sc18is602.rst
index 2a31dc7..4ab9ca3 100644
--- a/Documentation/spi/spi-sc18is602.rst
+++ b/Documentation/spi/spi-sc18is602.rst
@@ -6,7 +6,7 @@
 
   * NXP SI18IS602/602B/603
 
-    Datasheet: http://www.nxp.com/documents/data_sheet/SC18IS602_602B_603.pdf
+    Datasheet: https://www.nxp.com/documents/data_sheet/SC18IS602_602B_603.pdf
 
 Author:
         Guenter Roeck <linux@roeck-us.net>