Move the SELinux policy to the product definition

Update the path to the SELinux policy for FP2.

FPIIM-1462

Change-Id: I5b020f936fa426ad516ae5b8c450911121979523
diff --git a/sepolicy/Android.mk b/sepolicy/Android.mk
index 4ade363..4fdfbf3 100755
--- a/sepolicy/Android.mk
+++ b/sepolicy/Android.mk
@@ -1,3 +1,3 @@
 # Fairphone specific SELinux policy variable definitions
 BOARD_SEPOLICY_DIRS += \
-       device/fairphone_devices/sepolicy 
+       device/fairphone_devices/FP2/sepolicy