MAINTAINERS: add ath10k
MAINTAINERS: add ath10k

I forgot to add an entry to MAINTAINERS when submitting the driver.

Signed-off-by: Kalle Valo <7081a7d99b8c74c0698a728df19e3915a995d7e1@qca.qualcomm.com>

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