ARM: at91/trivial: update Kconfig comment to mention SAMA5
ARM: at91/trivial: update Kconfig comment to mention SAMA5

Cortex-A5 SAMA5 processors were not listed, add this in the AT91 comment.

Signed-off-by: Nicolas Ferre <45b517be0e5ec6dc3a39715767c1d18e090d39b4@atmel.com>
Acked-by: Boris BREZILLON <4e91513d4f418754031d3d36b3fc73980c40a38c@free-electrons.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs