feat(Snagfactory): Add a note for Fastboot buffer size

Snagfactory flashing will fail if fastboot buffer size is smaller than
the file being flashed for non-sparse images. Add a note for the same.
Also add a note for corresponding Snagfactory version for 10.1.

Signed-off-by: Paresh Bhagat <[email protected]>

Author: paresh-bhagat12

source/linux/Foundational_Components/Tools/Flash_via_Fastboot.rst

@@ -26,6 +26,10 @@ Installing Snagfactory
 
     $ python3 -m pip install --user snagboot
 
+.. note::
+
+   At the time of 10.1 release, the corresponding Snagfactory version was v2.0.
+
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 Building bootloader binaries for Recovery
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@@ -98,6 +102,13 @@ images after make can be found in :file:`board-support/built-images`.
 
 For more details regarding USB DFU refer :ref:`usb-device-firmware-upgrade-label`.
 
+.. note::
+
+   ``CONFIG_FASTBOOT_BUF_SIZE`` is defined in :file:`am6x_a53_snagfactory.config`
+   and specifies the maximum buffer size for flashing files. Its value must be equal
+   or greater than the largest file size being flashed. If smaller, non-sparse
+   images will not flash correctly due to issues with chunked processing.
+
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 Connections
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