samsung omap4: loop ringtones, cleanup unused props

Change-Id: Ib5597d0a842675d2d7df29e7d4fabb3837774a26
diff --git a/common.mk b/common.mk
index 3fe7fe6..32e0ef0 100644
--- a/common.mk
+++ b/common.mk
@@ -45,6 +45,8 @@
 PRODUCT_PROPERTY_OVERRIDES += \
     com.ti.omap_enhancement=true \
     omap.enhancement=true \
+    ro.telephony.call_ring.multiple=false \
+    ro.telephony.call_ring.delay=3000
 
 # Set default USB interface
 PRODUCT_DEFAULT_PROPERTY_OVERRIDES += \