build: Featurize to build only for 8960 target

(cherry picked 3d40631a61cf7bc97f369a5b123b8c72876c1af0 from
git.quicinc.com/platform/vendor/qcom-opensource/wlan/prima.git)

Change-Id: I71804c6bb1474191ec85768094f1493123be3a80
diff --git a/Android.mk b/Android.mk
index a977090..7fd7dea 100644
--- a/Android.mk
+++ b/Android.mk
@@ -1,6 +1,7 @@
 # Android makefile for the WLAN WCNSS/Prima Module
 
 # Build/Package only in case of 8960 target
+ifeq ($(call is-board-platform,msm8960),true)
 
 LOCAL_PATH := $(call my-dir)
 
@@ -88,3 +89,5 @@
         $(TARGET_OUT_ETC)/firmware/wlan/prima/WCNSS_qcom_cfg.ini)
 endif
 endif
+
+endif # 8960 target check