Emulator builds: Disable camera service Treble mode for now

Until all backwards-compatibility support is in place, the emulator
targets need to not use the Treble path.

Bug: 32991422
Bug: 32989965
Test: Built aosp_x86_64-eng and verified build.prop has the new key
Change-Id: I72487126b0ec7c7794bb3f57f4b1a649a2ec140b
diff --git a/target/product/emulator.mk b/target/product/emulator.mk
index 1ac98e6..51e926d 100644
--- a/target/product/emulator.mk
+++ b/target/product/emulator.mk
@@ -65,6 +65,10 @@
 	android.hardware.keymaster@3.0-impl \
 	android.hardware.keymaster@3.0-service
 
+# camera service treble disable until all backwards compat is complete
+PRODUCT_PROPERTY_OVERRIDES += \
+    camera.disable_treble=1
+
 PRODUCT_COPY_FILES += \
     device/generic/goldfish/fstab.goldfish:root/fstab.goldfish \
     device/generic/goldfish/init.goldfish.rc:root/init.goldfish.rc \