MAINTAINERS: BCM53573: Add internal Broadcom mailing list

There is a patchwork instance behind bcm-kernel-feedback-list that is
helpful to track submissions, add this list for the Broadcom BCM53573
architecture.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
This commit is contained in:
Florian Fainelli 2019-03-12 10:45:29 -07:00
commit 64f35709d5