Audio: Change the tag for systen properties.

Change tag to PRODUCT_PRODUCT_PROPERTIES for
system properties to be defined in product's
build.prop using system(qssi.mk).

CRs-Fixed: 2453202
Change-Id: I029b889765358ddd4c52137e1b75b14260b606e6
diff --git a/configs/qssi/qssi.mk b/configs/qssi/qssi.mk
index 3a644e2..9e0f587 100644
--- a/configs/qssi/qssi.mk
+++ b/configs/qssi/qssi.mk
@@ -103,11 +103,11 @@
 vendor.audio.hw.aac.encoder=true
 
 #audio becoming noisy intent broadcast delay
-PRODUCT_PROPERTY_OVERRIDES += \
+PRODUCT_PRODUCT_PROPERTIES += \
 audio.sys.noisy.broadcast.delay=600
 
 #offload pausetime out duration to 3 secs to inline with other outputs
-PRODUCT_PROPERTY_OVERRIDES += \
+PRODUCT_PRODUCT_PROPERTIES += \
 audio.sys.offload.pstimeout.secs=3
 
 #Set AudioFlinger client heap size