qcom_target: Add wlan-caf to CFI paths

* The default AOSP hardware/qcom/wlan path is listed in
  PRODUCT_CFI_INCLUDE_PATHS since wpa_supplicant is compiled with
  control flow integrity checks. Add the Qualcomm WLAN variant to
  PRODUCT_CFI_INCLUDE_PATHS as well so wpa_supplicant can safely link
  it without exploding.

Change-Id: Id5577846e1e1ea11f8a665d62847c80803e285f7
diff --git a/build/core/qcom_target.mk b/build/core/qcom_target.mk
index 47baea3..c3a4684 100644
--- a/build/core/qcom_target.mk
+++ b/build/core/qcom_target.mk
@@ -36,6 +36,8 @@
 $(call wlan-set-path-variant,wlan-caf)
 $(call bt-vendor-set-path-variant,bt-caf)
 
+PRODUCT_CFI_INCLUDE_PATHS += \
+    hardware/qcom/wlan-caf/qcwcn/wpa_supplicant_8_lib
 else
 
 $(call project-set-path,qcom-audio,hardware/qcom/audio/default)