Add Firefox Klar to the build

Issue: FP2N-4
Change-Id: I5c09b0696f552b54911e3b50560b3dbb40a07c36
Depends-On: I1aedea57542fdb9f5ec7b3548ad32fafbe11825d
diff --git a/device-vendor.mk b/device-vendor.mk
index 7cffb8c..f2bf8b0 100644
--- a/device-vendor.mk
+++ b/device-vendor.mk
@@ -19,3 +19,5 @@
 DEVICE_PACKAGE_OVERLAYS += \
 	vendor/fairphone/fp2-sibon/overlay
 
+PRODUCT_PACKAGES := \
+	FirefoxKlar