car: add evs hal

* EVS camera HAL supports UVC USB webcams. CSI camera modules are not
  supported with EVS. CSI camera modules need to be disconnected when using
  EVS so that UVC USB webcam will populate the first video device
  (/dev/video0).
* Enable default Android camera service so regular camera apps can be used
  as well (CSI camera modules & UVC USB webcams).
* Fixes https://github.com/raspberry-vanilla/android_local_manifest/issues/23

camera/evs_config_override.json

@@ -0,0 +1,85 @@
+
+{
+  "car" : {
+    "width"  : 76.7,
+    "wheelBase" : 117.9,
+    "frontExtent" : 44.7,
+    "rearExtent" : 40
+  },
+  "displays" : [
+    {
+      "_comment": "Display0",
+      "displayPort" : 0,
+      "frontRange" : 100,
+      "rearRange" : 100
+    },
+    {
+      "_comment": "Display1",
+      "displayPort" : 1,
+      "frontRange" : 100,
+      "rearRange" : 100
+    }
+  ],
+  "graphic" : {
+    "frontPixel" : -20,
+    "rearPixel" : 260
+  },
+  "cameras" : [
+    {
+      "cameraId" : "/dev/video0",
+      "function" : "reverse",
+      "x" : 0.0,
+      "y" : 20.0,
+      "z" : 48,
+      "yaw" : 180,
+      "pitch" : -10,
+      "roll" : 0,
+      "hfov" : 115,
+      "vfov" : 80,
+      "hflip" : true,
+      "vflip" : false
+    },
+    {
+      "cameraId" : "1",
+      "function" : "front",
+      "x" : 0.0,
+      "y" : 100.0,
+      "z" : 48,
+      "yaw" : 0,
+      "pitch" : -10,
+      "roll" : 0,
+      "hfov" : 115,
+      "vfov" : 80,
+      "hflip" : false,
+      "vflip" : false
+    },
+    {
+      "cameraId" : "2",
+      "function" : "right",
+      "x" : -25.0,
+      "y" : 60.0,
+      "z" : 88,
+      "yaw" : -90,
+      "pitch" : -10,
+      "roll" : 0,
+      "hfov" : 60,
+      "vfov" : 62,
+      "hflip" : false,
+      "vflip" : false
+    },
+    {
+      "cameraId" : "3",
+      "function" : "left",
+      "x" : 20.0,
+      "y" : 60.0,
+      "z" : 88,
+      "yaw" : 90,
+      "pitch" : -10,
+      "roll" : 0,
+      "hfov" : 60,
+      "vfov" : 62,
+      "hflip" : false,
+      "vflip" : false
+    }
+  ]
+}