APM: dump `GainController1::AnalogGainController` in `Config::ToString`

Update `AudioProcessing::Config::ToString()` to also dump the config
from `AnalogGainController` which is missing.

Bug: webrtc:7494
Change-Id: Iea5dab1f6abb9ec8581ce690a2a119f202b4d1e1
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/219082
Reviewed-by: Per Ã…hgren <peah@webrtc.org>
Commit-Queue: Alessio Bazzica <alessiob@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34025}
diff --git a/modules/audio_processing/include/audio_processing.cc b/modules/audio_processing/include/audio_processing.cc
index fc0263c..f50a283 100644
--- a/modules/audio_processing/include/audio_processing.cc
+++ b/modules/audio_processing/include/audio_processing.cc
@@ -149,7 +149,15 @@
       << ", enable_limiter: " << gain_controller1.enable_limiter
       << ", analog_level_minimum: " << gain_controller1.analog_level_minimum
       << ", analog_level_maximum: " << gain_controller1.analog_level_maximum
-      << " }, gain_controller2: { enabled: " << gain_controller2.enabled
+      << ", analog_gain_controller { enabled: "
+      << gain_controller1.analog_gain_controller.enabled
+      << ", startup_min_volume: "
+      << gain_controller1.analog_gain_controller.startup_min_volume
+      << ", clipped_level_min: "
+      << gain_controller1.analog_gain_controller.clipped_level_min
+      << ", enable_digital_adaptive: "
+      << gain_controller1.analog_gain_controller.enable_digital_adaptive
+      << " }}, gain_controller2: { enabled: " << gain_controller2.enabled
       << ", fixed_digital: { gain_db: "
       << gain_controller2.fixed_digital.gain_db
       << " }, adaptive_digital: { enabled: "