MAINTAINERS: Atmel drivers: change NAND and ISI entries
MAINTAINERS: Atmel drivers: change NAND and ISI entries

Update Josh's entries about NAND and ISI drivers.
Thanks for your work with Atmel Josh!

Signed-off-by: Nicolas Ferre <45b517be0e5ec6dc3a39715767c1d18e090d39b4@atmel.com>
Acked-by: Wenyou Yang <c376221f99e2c9ceacfa41dec806b26074cb7f05@atmel.com>
Acked-by: Ludovic Desroches <627575320a9526cb6c91021c9940202b0e84c416@atmel.com>
Acked-by: Josh Wu <f6fa9c9ea304a0d3fe5aea336a475b1da3766a6c@outlook.com>

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