audio: Fix state machine initial and final state symbols

In UML, the initial state is a solid circle, the final
state is a double circle. In the Core HAL diagrams it
was the opposite.

Test: dot -Tpng stream-{in|out}-[async-]sm.gv -o ...
Change-Id: Id69f17d0a47227e744eb6dadcb5fee08c07bb0bd
diff --git a/audio/aidl/android/hardware/audio/core/stream-in-async-sm.gv b/audio/aidl/android/hardware/audio/core/stream-in-async-sm.gv
index 818b18e..6b69845 100644
--- a/audio/aidl/android/hardware/audio/core/stream-in-async-sm.gv
+++ b/audio/aidl/android/hardware/audio/core/stream-in-async-sm.gv
@@ -14,8 +14,8 @@
 
 // To render: dot -Tpng stream-in-async-sm.gv -o stream-in-async-sm.png
 digraph stream_in_async_state_machine {
-    node [shape=doublecircle style=filled fillcolor=black width=0.5] I;
-    node [shape=point width=0.5] F;
+    node [shape=point style=filled fillcolor=black width=0.5] I;
+    node [shape=doublecircle width=0.5] F;
     node [shape=oval width=1];
     node [fillcolor=lightgreen] STANDBY;  // buffer is empty
     node [fillcolor=tomato] CLOSED;
diff --git a/audio/aidl/android/hardware/audio/core/stream-in-sm.gv b/audio/aidl/android/hardware/audio/core/stream-in-sm.gv
index 805dc32..aa7af54 100644
--- a/audio/aidl/android/hardware/audio/core/stream-in-sm.gv
+++ b/audio/aidl/android/hardware/audio/core/stream-in-sm.gv
@@ -14,8 +14,8 @@
 
 // To render: dot -Tpng stream-in-sm.gv -o stream-in-sm.png
 digraph stream_in_state_machine {
-    node [shape=doublecircle style=filled fillcolor=black width=0.5] I;
-    node [shape=point width=0.5] F;
+    node [shape=point style=filled fillcolor=black width=0.5] I;
+    node [shape=doublecircle width=0.5] F;
     node [shape=oval width=1];
     node [fillcolor=lightgreen] STANDBY;  // buffer is empty
     node [fillcolor=tomato] CLOSED;
diff --git a/audio/aidl/android/hardware/audio/core/stream-out-async-sm.gv b/audio/aidl/android/hardware/audio/core/stream-out-async-sm.gv
index 501dc01..a3f0de9 100644
--- a/audio/aidl/android/hardware/audio/core/stream-out-async-sm.gv
+++ b/audio/aidl/android/hardware/audio/core/stream-out-async-sm.gv
@@ -14,8 +14,8 @@
 
 // To render: dot -Tpng stream-out-async-sm.gv -o stream-out-async-sm.png
 digraph stream_out_async_state_machine {
-    node [shape=doublecircle style=filled fillcolor=black width=0.5] I;
-    node [shape=point width=0.5] F;
+    node [shape=point style=filled fillcolor=black width=0.5] I;
+    node [shape=doublecircle width=0.5] F;
     node [shape=oval width=1];
     node [fillcolor=lightgreen] STANDBY;  // buffer is empty
     node [fillcolor=lightgreen] IDLE;     // buffer is empty
diff --git a/audio/aidl/android/hardware/audio/core/stream-out-sm.gv b/audio/aidl/android/hardware/audio/core/stream-out-sm.gv
index 47e7fda..23fb5d9 100644
--- a/audio/aidl/android/hardware/audio/core/stream-out-sm.gv
+++ b/audio/aidl/android/hardware/audio/core/stream-out-sm.gv
@@ -14,8 +14,8 @@
 
 // To render: dot -Tpng stream-out-sm.gv -o stream-out-sm.png
 digraph stream_out_state_machine {
-    node [shape=doublecircle style=filled fillcolor=black width=0.5] I;
-    node [shape=point width=0.5] F;
+    node [shape=point style=filled fillcolor=black width=0.5] I;
+    node [shape=doublecircle width=0.5] F;
     node [shape=oval width=1];
     node [fillcolor=lightgreen] STANDBY;  // buffer is empty
     node [fillcolor=lightgreen] IDLE;     // buffer is empty