Docs: Adding new audio-related diagrams and cropped photos

Bug: 18947698
Change-Id: I168063c04ca1ade684b8470db0f1c3e7ead694d3
diff --git a/src/devices/audio/images/breadboard.jpg b/src/devices/audio/images/breadboard.jpg
index f98422f..fd0ec39 100644
--- a/src/devices/audio/images/breadboard.jpg
+++ b/src/devices/audio/images/breadboard.jpg
Binary files differ
diff --git a/src/devices/audio/images/dac.png b/src/devices/audio/images/dac.png
index 6875035..a13027c 100644
--- a/src/devices/audio/images/dac.png
+++ b/src/devices/audio/images/dac.png
Binary files differ
diff --git a/src/devices/audio/images/display.jpg b/src/devices/audio/images/display.jpg
index 9748ec3..545206b 100644
--- a/src/devices/audio/images/display.jpg
+++ b/src/devices/audio/images/display.jpg
Binary files differ
diff --git a/src/devices/audio/images/hub.jpg b/src/devices/audio/images/hub.jpg
index 0dd44bd..e825cdd 100644
--- a/src/devices/audio/images/hub.jpg
+++ b/src/devices/audio/images/hub.jpg
Binary files differ
diff --git a/src/devices/audio/images/loopback_assembled.jpg b/src/devices/audio/images/loopback_assembled.jpg
index 1a46e60..d54fa57 100644
--- a/src/devices/audio/images/loopback_assembled.jpg
+++ b/src/devices/audio/images/loopback_assembled.jpg
Binary files differ
diff --git a/src/devices/audio/images/loopback_circuit.png b/src/devices/audio/images/loopback_circuit.png
index 102c1f3..4c47e53 100644
--- a/src/devices/audio/images/loopback_circuit.png
+++ b/src/devices/audio/images/loopback_circuit.png
Binary files differ
diff --git a/src/devices/audio/images/medialog_after.png b/src/devices/audio/images/medialog_after.png
index c175fb3..0c16225 100644
--- a/src/devices/audio/images/medialog_after.png
+++ b/src/devices/audio/images/medialog_after.png
Binary files differ
diff --git a/src/devices/audio/images/medialog_before.png b/src/devices/audio/images/medialog_before.png
index 4299087..928d2f3 100644
--- a/src/devices/audio/images/medialog_before.png
+++ b/src/devices/audio/images/medialog_before.png
Binary files differ
diff --git a/src/devices/audio/images/otg.jpg b/src/devices/audio/images/otg.jpg
index 152180d..13a4071 100644
--- a/src/devices/audio/images/otg.jpg
+++ b/src/devices/audio/images/otg.jpg
Binary files differ
diff --git a/src/devices/audio/images/pcb.jpg b/src/devices/audio/images/pcb.jpg
index 10a2789..a32bc35 100644
--- a/src/devices/audio/images/pcb.jpg
+++ b/src/devices/audio/images/pcb.jpg
Binary files differ