Enable mirror mode for PPP front camera

config/pine64,pinephone-pro.conf

@@ -94,6 +94,7 @@ Front: {
             Rotate: 90;
             FocalLength: 3.33;
             FNumber: 3.0;
+            Mirror: true;
 
             Pipeline: (
                 {Type: "Link", From: "ov8858", FromPad: 0, To: "rkisp1_csi", ToPad: 0},
@@ -117,6 +118,7 @@ Front: {
         #     Rotate: 90;
         #     FocalLength: 3.33;
         #     FNumber: 3.0;
+        #     Mirror: true;
 
         #     Pipeline: (
         #         {Type: "Link", From: "ov8858", FromPad: 0, To: "rkisp1_csi", ToPad: 0},
@@ -140,6 +142,7 @@ Front: {
             Rotate: 90;
             FocalLength: 3.33;
             FNumber: 3.0;
+            Mirror: true;
 
             Pipeline: (
                 {Type: "Link", From: "ov8858", FromPad: 0, To: "rkisp1_csi", ToPad: 0},