Declare vendor/qcom/opensource/data-ipa-cfg-mgr as soong namespace

The mk files in vendor/qcom/opensource/data-ipa-cfg-mgr were
converted to bp, so this is needed to avoid duplicate module
build errors on devices that use a different data-ipa-cfg-mgr hal.

Co-authored-by: Christian Oder <myself5@carbonrom.org>
Change-Id: Ib4d566e43145745afac0259c95c0a563779fa3bd
diff --git a/build/core/qcom_target.mk b/build/core/qcom_target.mk
index 7bb7a76..79a0d67 100644
--- a/build/core/qcom_target.mk
+++ b/build/core/qcom_target.mk
@@ -24,4 +24,7 @@
 PRODUCT_CFI_INCLUDE_PATHS += \
     hardware/qcom-caf/wlan/qcwcn/wpa_supplicant_8_lib
 
+PRODUCT_SOONG_NAMESPACES += \
+    $(call project-path-for,qcom-data-ipa-cfg-mgr)
+
 endif