UBUNTU: SAUCE: Redpine: resolve race while resuming from S4

UBUNTU: SAUCE: Redpine: resolve race while resuming from S4

BugLink: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1753438
BugLink: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1753439
At SDIO restore ieee80211_restart_hw() is getting called to
restart all MAC operations. This step is not required.
eturning 1 from mac80211_resume() will serve this purpose.
Above method adding up some races in calling functions because
of timing issues.

Signed-off-by: Prameela Rani Garnepudi <prameela.garnepudi@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Shrirang Bagul <shrirang.bagul@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>