Add SYSTEM_CAMERA capability to camera2 and define @SystemApi SYSTEM_CAMERA permissions.

In order to access system-only cameras client processes need
SYSTEM_CAMERA permissions in addition to CAMERA permissions. A
permission was preferred over other mechanisms such as having private
connections would need to hard-code the package name(s) of clients using
system only camera devices. A system | signature permission on the other hand,
would make this more flexible and would be better for security.

Bug: 133508924

Test: cts CameraManagerTest, CameraDeviceTest
Test: Give cts test SYSTEM_CAMERA permissions by using
      adoptShellPermissions and run some camera tests.

Change-Id: Ibcd6ccdb231dcca949ed4fb14712d033a5801d36
Signed-off-by: Jayant Chowdhary <jchowdhary@google.com>
diff --git a/packages/Shell/AndroidManifest.xml b/packages/Shell/AndroidManifest.xml
index bb9a5e4..c05609e 100644
--- a/packages/Shell/AndroidManifest.xml
+++ b/packages/Shell/AndroidManifest.xml
@@ -169,6 +169,9 @@
     <uses-permission android:name="android.permission.MANAGE_SENSORS" />
     <uses-permission android:name="android.permission.MANAGE_AUDIO_POLICY" />
     <uses-permission android:name="android.permission.MANAGE_CAMERA" />
+    <!-- Permissions needed to test system only camera devices -->
+    <uses-permission android:name="android.permission.CAMERA" />
+    <uses-permission android:name="android.permission.SYSTEM_CAMERA" />
     <!-- Permission needed to enable/disable Bluetooth/Wifi -->
     <uses-permission android:name="android.permission.MANAGE_BLUETOOTH_WHEN_WIRELESS_CONSENT_REQUIRED" />
     <uses-permission android:name="android.permission.MANAGE_WIFI_WHEN_WIRELESS_CONSENT_REQUIRED" />