camera/device/3.2: Add custom vendor operating modes

This fixes a perf/feature regression from the legacy HAL definitions;
previously, vendor implementations could use custom values with this
field to implement custom features on their devices.

Add several enum values that can be used for this purpose.

Test: New CTS test passes
Bug: 34853980
Change-Id: I1b37a9511326178b8eb7536ff99e14d83be3b0c2
diff --git a/camera/device/3.2/types.hal b/camera/device/3.2/types.hal
index c07a670..fe1edbf 100644
--- a/camera/device/3.2/types.hal
+++ b/camera/device/3.2/types.hal
@@ -161,8 +161,21 @@
      * CONSTRAINED_HIGH_SPEED_VIDEO in the android.request.availableCapabilities
      * static metadata.
      */
-    CONSTRAINED_HIGH_SPEED_MODE = 1
+    CONSTRAINED_HIGH_SPEED_MODE = 1,
 
+    /**
+     * A set of vendor-defined operating modes, for custom default camera
+     * application features that can't be implemented in the fully flexible fashion
+     * required for NORMAL_MODE.
+     */
+    VENDOR_MODE_0 = 0x8000,
+    VENDOR_MODE_1,
+    VENDOR_MODE_2,
+    VENDOR_MODE_3,
+    VENDOR_MODE_4,
+    VENDOR_MODE_5,
+    VENDOR_MODE_6,
+    VENDOR_MODE_7
 };
 
 /**