Camera2: Fix JPEG quality metadata type, new warnings.

- JPEG quality tag is now a uint8_t, not an int. Update parameter code
accordingly.

- Fix new warnings about narrowing conversions.

Bug: 7944244

Change-Id: Ie081c57c9e9323148614b170b132ffb98c0a0b9f
diff --git a/services/camera/libcameraservice/camera2/Parameters.h b/services/camera/libcameraservice/camera2/Parameters.h
index 4192e97..9f5f03b 100644
--- a/services/camera/libcameraservice/camera2/Parameters.h
+++ b/services/camera/libcameraservice/camera2/Parameters.h
@@ -55,7 +55,7 @@
     int pictureWidth, pictureHeight;
 
     int32_t jpegThumbSize[2];
-    int32_t jpegQuality, jpegThumbQuality;
+    uint8_t jpegQuality, jpegThumbQuality;
     int32_t jpegRotation;
 
     bool gpsEnabled;