libcamera2: add hardwareLevel to camera metadata

Technically, this is only required for v3 and higher devices, and this
is a v2 device.  There aren't any other v2 devices, so our framework
logic just treats them the same.  Adding this metadata entry puts this
device back as a first-class full (v3) device in the framework.

Bug: 9261359
Change-Id: I4ba91c5689fd17d4a3f2044fae1c39dd9ee625df
diff --git a/libcamera2/ExynosCamera2.cpp b/libcamera2/ExynosCamera2.cpp
index b26fee4..3ae6590 100644
--- a/libcamera2/ExynosCamera2.cpp
+++ b/libcamera2/ExynosCamera2.cpp
@@ -392,6 +392,12 @@
     if ( ( ret = addOrSize(*info, sizeRequest, &entryCount, &dataCount, \
             tag, data, count) ) != OK ) return ret
 
+    // android.info
+
+    int32_t hardwareLevel = ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_FULL;
+    ADD_OR_SIZE(ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL,
+            &hardwareLevel, 1);
+
     // android.lens
 
     ADD_OR_SIZE(ANDROID_LENS_INFO_MINIMUM_FOCUS_DISTANCE,