doc: update stale links to MCUboot documentation

mcuboot.com/documentation --> docs.mcuboot.com

Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>

doc/build/sysbuild/index.rst

@@ -631,7 +631,7 @@ part of the sysbuild build invocation, but ``west flash`` or ``west debug``
 will not be aware of the application. Instead, you must manually flash and
 debug the application.
 
-.. _MCUboot with Zephyr: https://mcuboot.com/documentation/readme-zephyr/
+.. _MCUboot with Zephyr: https://docs.mcuboot.com/readme-zephyr
 .. _ExternalProject: https://cmake.org/cmake/help/latest/module/ExternalProject.html
 
 Extending sysbuild

doc/services/device_mgmt/dfu.rst

@@ -86,5 +86,5 @@ More detailed information regarding the use of MCUboot with Zephyr  can be found
 in the `MCUboot with Zephyr`_ documentation page on the MCUboot website.
 
 .. _MCUboot boot loader: https://mcuboot.com/
-.. _MCUboot with Zephyr: https://mcuboot.com/documentation/readme-zephyr/
+.. _MCUboot with Zephyr: https://docs.mcuboot.com/readme-zephyr
 .. _MCUboot GitHub Project: https://github.com/runtimeco/mcuboot

doc/services/device_mgmt/smp_groups/smp_group_1.rst

@@ -198,7 +198,7 @@ where:
 .. note::
     For more information on how does image/slots function, please refer to
     the MCUBoot documentation
-    https://www.mcuboot.com/documentation/design/#image-slots
+    https://docs.mcuboot.com/design.html#image-slots
     For information on MCUboot image format, please reset to the MCUboot
     documentation https://docs.mcuboot.com/design.html#image-format
 

doc/services/storage/flash_map/flash_map.rst

@@ -72,7 +72,7 @@ documentation`_ for more details.
 The ``storage_partition`` node is defined for use by a file system or other
 nonvolatile storage API.
 
-.. _MCUboot documentation: https://mcuboot.com/
+.. _MCUboot documentation: https://docs.mcuboot.com
 
 Numeric flash area ID is obtained by passing DTS node label to
 :c:macro:`FIXED_PARTITION_ID()`; for example to obtain ID number

samples/boards/esp32/flash_encryption/README.rst

@@ -109,4 +109,4 @@ memory reading using proper spi_flash call, which decrypts the content as expect
    https://docs.espressif.com/projects/esp-idf/en/latest/esp32/security/flash-encryption.html
 
 .. _MCUBoot Readme:
-   https://www.mcuboot.com/documentation/readme-espressif/
+   https://docs.mcuboot.com/readme-espressif

samples/subsys/usb/dfu/README.rst

@@ -153,4 +153,4 @@ Note the ``Swap type: perm``.
 
 
 .. _MCUboot GitHub repo: https://github.com/zephyrproject-rtos/mcuboot
-.. _Using MCUboot with Zephyr: https://mcuboot.com/documentation/readme-zephyr/
+.. _Using MCUboot with Zephyr: https://docs.mcuboot.com/readme-zephyr