feat(android): AM62X/AM62PX: update flash instructions

Android Verified Boot is enabled by default and can be disabled with
the --disable-avb option.

Remove deprecated AVB environment options from the documentation for build
and bootloader.

Mention it and add the new flash command line with the proper parameter
to disable the feature if needed.

Signed-off-by: Maxime Fournier <mfournier@baylibre.com>

Author: FournierMx

source/android/Overview_Building_the_SDK.rst

@@ -99,11 +99,11 @@ Where ``<BUILD_TARGET>`` is listed in the table below :
     The recommended ``<BUILD_TARGET>`` to use is ``am62p-ap3a-userdebug``.
 
 It's possible to customize the standard build (``m``), by passing build flags.
-For example, the following enables AVB on userdebug builds:
+For example, the following enables ADB on user builds:
 
 .. code-block:: console
 
-  $ TARGET_AVB_ENABLE=true m
+  $ TARGET_ADB_USER_ENABLE=true m
 
 The following build flags are available. **Default** values are **highlighted**.
 
@@ -113,9 +113,6 @@ The following build flags are available. **Default** values are **highlighted**.
    * - Flag
      - Possible values
      - Description
-   * - ``TARGET_AVB_ENABLE``
-     - **false**/true
-     - Forces AVB feature on userdebug
    * - ``TARGET_ADB_USER_ENABLE``
      - **false**/true
      - Forces enable ADB on user builds (**NOT for production builds**)

source/android/Overview_Flashing.rst

@@ -213,15 +213,6 @@ Once the build is complete, follow the steps below to flash the images to eMMC.
           ## Resetting to default environment
           Saving Environment to MMC... Writing to MMC(0)... OK
 
-       .. note::
-
-          If you build with ``TARGET_AVB_ENABLE=true`` or flash user images you need to run this:
-
-          .. code-block:: console
-
-             => setenv force_avb "1"; saveenv;
-             Saving Environment to MMC... Writing to MMC(0)... OK
-
        .. tip::
 
           By default, no Device-Tree Overlays are selected.

source/devices/AM62PX/android/Application_Notes_Android_SD_CARD.rst

@@ -88,13 +88,21 @@ Flashing SD Card
        - 01000000
        - 11000010
 
-- Go in :file:`out` directory in android environment and launch this command:
+- Go in :file:`out` directory in android environment.
 
   .. code-block:: console
 
      $ cd out/target/product/am62p
      $ sudo ./flashall.sh --board="am62px-sk" --sdcard="/dev/sdX"
 
+  .. note::
+
+     To disable AVB, pass the ``--disable-avb`` argument to :file:`flashall.sh`:
+
+     .. code-block:: console
+
+        $ sudo ./flashall.sh --board="am62px-sk" --sdcard="/dev/sdX" --disable-avb
+
 :file:`flashall.sh` **script print in your console instruction to do**
 
 .. tip::

source/devices/AM62X/android/Application_Notes_Android_SD_CARD.rst

@@ -89,12 +89,20 @@ Flashing SD Card
        - 01000000
        - 11000010
 
-- Go in :file:`out` directory in android environment and launch this command:
+- Go in :file:`out` directory in android environment.
 
   .. code-block:: console
 
-     $ cd out/target/product/am62x
-     $ sudo ./flashall.sh --board="am62x-sk" --sdcard="/dev/sdX"
+     $ cd out/target/product/am62p
+     $ sudo ./flashall.sh --board="am62px-sk" --sdcard="/dev/sdX"
+
+  .. note::
+
+     To disable AVB, pass the ``--disable-avb`` argument to :file:`flashall.sh`:
+
+     .. code-block:: console
+
+        $ sudo ./flashall.sh --board="am62px-sk" --sdcard="/dev/sdX" --disable-avb
 
 :file:`flashall.sh` **script print in your console instruction to do**