documentation: update sources mirror URL

The URL for the sources mirror no longer works.  Update to the new
location.

(From yocto-docs rev: 616c326437c03d7f4530168c4c9d6ef50743952e)

Signed-off-by: Jon Mason <jdmason@kudzu.us>
Reviewed-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/ref-manual/faq.rst

@@ -302,10 +302,10 @@ attempt before any others by adding something like the following to the
 ``local.conf`` configuration file::
 
    PREMIRRORS:prepend = "\
-       git://.*/.* http://www.yoctoproject.org/sources/ \n \
-       ftp://.*/.* http://www.yoctoproject.org/sources/ \n \
-       http://.*/.* http://www.yoctoproject.org/sources/ \n \
-       https://.*/.* http://www.yoctoproject.org/sources/ \n"
+       git://.*/.* http://downloads.yoctoproject.org/mirror/sources/ \n \
+       ftp://.*/.* http://downloads.yoctoproject.org/mirror/sources/ \n \
+       http://.*/.* http://downloads.yoctoproject.org/mirror/sources/ \n \
+       https://.*/.* http://downloads.yoctoproject.org/mirror/sources/ \n"
 
 These changes cause the build system to intercept Git, FTP, HTTP, and
 HTTPS requests and direct them to the ``http://`` sources mirror. You
@@ -342,9 +342,10 @@ You could make the following changes to the ``local.conf`` configuration
 file as long as the :term:`PREMIRRORS` server is current::
 
    PREMIRRORS:prepend = "\
-       ftp://.*/.* http://www.yoctoproject.org/sources/ \n \
-       http://.*/.* http://www.yoctoproject.org/sources/ \n \
-       https://.*/.* http://www.yoctoproject.org/sources/ \n"
+       git://.*/.* http://downloads.yoctoproject.org/mirror/sources/ \n \
+       ftp://.*/.* http://downloads.yoctoproject.org/mirror/sources/ \n \
+       http://.*/.* http://downloads.yoctoproject.org/mirror/sources/ \n \
+       https://.*/.* http://downloads.yoctoproject.org/mirror/sources/ \n"
    BB_FETCH_PREMIRRORONLY = "1"
 
 These changes would cause the build system to successfully fetch source

documentation/ref-manual/variables.rst

@@ -5855,10 +5855,10 @@ system and gives an overview of their function and contents.
       :term:`Build Directory`::
 
          PREMIRRORS:prepend = "\
-             git://.*/.* http://www.yoctoproject.org/sources/ \n \
-             ftp://.*/.* http://www.yoctoproject.org/sources/ \n \
-             http://.*/.* http://www.yoctoproject.org/sources/ \n \
-             https://.*/.* http://www.yoctoproject.org/sources/ \n"
+             git://.*/.* http://downloads.yoctoproject.org/mirror/sources/ \n \
+             ftp://.*/.* http://downloads.yoctoproject.org/mirror/sources/ \n \
+             http://.*/.* http://downloads.yoctoproject.org/mirror/sources/ \n \
+             https://.*/.* http://downloads.yoctoproject.org/mirror/sources/ \n"
 
       These changes cause the
       build system to intercept Git, FTP, HTTP, and HTTPS requests and