[PW_SID:664451] [1/2] netdev: Add logging for CQM messages

[IWDTestBot]

Add extra logging around CQM events to help track wifi status.

The signal strength logging matches wpa_supplicant's which looks like
this:

CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-60 noise=-96 txrate=6000

src/netdev.c | 22 ++++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)

[IWDTestBot]

Fetch PR
Test ID: fetch
Desc: Fetch the PR commits for this CI run
Duration: 3.57 seconds
Result: PASS

Make Distcheck
Test ID: makedistcheck
Desc: Run distcheck to check the distribution
Duration: 67.84 seconds
Result: PASS

Build - Configure
Test ID: build
Desc: Configure the BlueZ source tree
Duration: 16.09 seconds
Result: PASS

Make Check
Test ID: makecheck
Desc: Run 'make check'
Duration: 3.98 seconds
Result: PASS

Make Check w/Valgrind
Test ID: makecheckvalgrind
Desc: Run 'make check' with Valgrind
Duration: 140.54 seconds
Result: PASS

Incremental Build with patches
Test ID: incremental_build
Desc: Incremental build per patch in the series
Duration: 197.29 seconds
Result: PASS

[IWDTestBot]

Fetch PR
Test ID: fetch
Desc: Fetch the PR commits for this CI run
Duration: 3.56 seconds
Result: PASS

GitLint
Test ID: gitlint
Desc: Run gitlint with rule in .gitlint
Duration: 0.95 seconds
Result: PASS

Make Distcheck
Test ID: makedistcheck
Desc: Run distcheck to check the distribution
Duration: 55.23 seconds
Result: PASS

Build - Configure
Test ID: build
Desc: Configure the BlueZ source tree
Duration: 19.06 seconds
Result: PASS

Make Check
Test ID: makecheck
Desc: Run 'make check'
Duration: 5.22 seconds
Result: PASS

Make Check w/Valgrind
Test ID: makecheckvalgrind
Desc: Run 'make check' with Valgrind
Duration: 154.82 seconds
Result: PASS

Incremental Build with patches
Test ID: incremental_build
Desc: Incremental build per patch in the series
Duration: 211.59 seconds
Result: PASS

Autotest Runner
Test ID: testrunner
Desc: Runs IWD's autotest framework
Duration: 776.77 seconds
Result: PASS

Clang Build
Test ID: clang
Desc: Build IWD using clang compiler
Duration: 155.18 seconds
Result: PASS