README: bump commit ID for meta-atmel
README: bump commit ID for meta-atmel

Update commit ID in bitbake output example to match most recent changes.

Signed-off-by: Nicolas Ferre <45b517be0e5ec6dc3a39715767c1d18e090d39b4@microchip.com>

linux4sam/meta-atmel,linux4sam/meta-atmel,linux4sam/meta-atmel,linux4sam/meta-atmel,linux4sam/meta-atmel