Merge branch 't7xx-pm-fixes'

Kornel Dulęba says:

====================
net: wwan: t7xx: Fix Runtime PM implementation

d10b3a69

 ("net: wwan: t7xx: Runtime PM") introduced support for
Runtime PM for this driver, but due to a bug in the initialization logic
the usage refcount would never reach 0, leaving the feature unused.
This patchset addresses that, together with a bug found after runtime
suspend was enabled.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>