cameraserver: Implement HIDL ICameraService skeleton.

Implement basic ICameraService HIDL functions, along with HIDL<=> AIDL
type conversions.

Bug: 110364143

Test: (build) mm -j64
Test: lshal->android.frameworks.cameraservice.service@2.0 shows up
Test: Sanity-> click pictures using GCA.

Change-Id: I44c2a96b1ccc05941d075e2bdeb94a8378d53c67
Signed-off-by: Jayant Chowdhary <jchowdhary@google.com>
diff --git a/camera/cameraserver/main_cameraserver.cpp b/camera/cameraserver/main_cameraserver.cpp
index 3972436..53b3d84 100644
--- a/camera/cameraserver/main_cameraserver.cpp
+++ b/camera/cameraserver/main_cameraserver.cpp
@@ -26,8 +26,9 @@
 {
     signal(SIGPIPE, SIG_IGN);
 
-    // Set 3 threads for HIDL calls
-    hardware::configureRpcThreadpool(3, /*willjoin*/ false);
+    // Set 5 threads for HIDL calls. Now cameraserver will serve HIDL calls in
+    // addition to consuming them from the Camera HAL as well.
+    hardware::configureRpcThreadpool(5, /*willjoin*/ false);
 
     sp<ProcessState> proc(ProcessState::self());
     sp<IServiceManager> sm = defaultServiceManager();