feat(android): kernel: Move "new drivers" to end of page

This deserves a section on its own, since some users might just want
to rebuild the existing kernel without modifying the defconfig.

Move this to the end of the page and change header to be a
separate chapter.

Signed-off-by: Mattijs Korpershoek <[email protected]>

Author: Mattijs Korpershoek

source/android/Foundational_Components_Kernel.rst

@@ -93,8 +93,38 @@ The usual (``make menuconfig``) is done via ``bazel`` command :
       will be used to create :file:`boot.img`
 
 
+Rebuild Android images
+======================
+
+.. ifconfig:: CONFIG_part_variant in ('AM62X', 'AM62PX')
+
+   We should re-generate the Android images to include the newly build kernel.
+   Follow the Android :ref:`android-build-aosp` to do so.
+
+*********************
+Flashing instructions
+*********************
+
+.. ifconfig:: CONFIG_part_variant in ('AM62X', 'AM62PX')
+
+   In order to flash a new kernel, several images should be flashed:
+
+   .. code-block:: console
+
+      $ adb reboot fastboot
+      < Wait for fastbootd reboot >
+
+      $ cd <PATH/TO/IMAGES>
+      $ fastboot flash boot boot.img
+      $ fastboot flash vendor_boot vendor_boot.img
+      $ fastboot flash vendor_dlkm vendor_dlkm.img
+      $ fastboot reboot
+
+   The board should boot with the new kernel.
+
+********************
 Enabling new drivers
-====================
+********************
 
 Since the kernel is based on the
 `Generic Kernel Image <https://source.android.com/docs/core/architecture/kernel/generic-kernel-image>`_,
@@ -129,31 +159,3 @@ To enable new modules:
 
 #. Finally, rebuild the Android images.
 
-Rebuild Android images
-======================
-
-.. ifconfig:: CONFIG_part_variant in ('AM62X', 'AM62PX')
-
-   We should re-generate the Android images to include the newly build kernel.
-   Follow the Android :ref:`android-build-aosp` to do so.
-
-*********************
-Flashing instructions
-*********************
-
-.. ifconfig:: CONFIG_part_variant in ('AM62X', 'AM62PX')
-
-   In order to flash a new kernel, several images should be flashed:
-
-   .. code-block:: console
-
-      $ adb reboot fastboot
-      < Wait for fastbootd reboot >
-
-      $ cd <PATH/TO/IMAGES>
-      $ fastboot flash boot boot.img
-      $ fastboot flash vendor_boot vendor_boot.img
-      $ fastboot flash vendor_dlkm vendor_dlkm.img
-      $ fastboot reboot
-
-   The board should boot with the new kernel.