ARM: at91/Kconfig: add clarifications to AT91SAM9M10G45-EK entry

Add clarifications about the SoCs that can be found on an AT91SAM9M10G45-EK
board. Add also the web link to this board on Atmel's website.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
1 file changed