Add 176x144 preview size for front camera.

bug:4083696

Change-Id: I2e3a8ad17770680f02d1f708bd704fc299a7bd98
diff --git a/libcamera/SecCameraHWInterface.cpp b/libcamera/SecCameraHWInterface.cpp
index 4a5b012..fed80e3 100644
--- a/libcamera/SecCameraHWInterface.cpp
+++ b/libcamera/SecCameraHWInterface.cpp
@@ -163,7 +163,7 @@
               "2560x1920,2048x1536,1600x1200,1280x960,640x480");
     } else {
         p.set(CameraParameters::KEY_SUPPORTED_PREVIEW_SIZES,
-              "640x480");
+              "640x480,176x144");
         p.set(CameraParameters::KEY_SUPPORTED_PICTURE_SIZES,
               "640x480");
     }