s4: Strip leading / from PRODUCT_COPY_FILES target

* This is incorrect

Change-Id: Ie044eb06eef6d7ef0c1649e2cb636005c3859295

s4.mk

@@ -52,7 +52,7 @@ PRODUCT_PACKAGES += \
     ueventd.qcom.rc
 
 PRODUCT_COPY_FILES += \
-    $(LOCAL_PATH)/configs/init.qcom.bt.sh:/system/etc/init.qcom.bt.sh
+    $(LOCAL_PATH)/configs/init.qcom.bt.sh:system/etc/init.qcom.bt.sh
 
 # Recovery
 COMMON_GLOBAL_CFLAGS += -DNO_SECURE_DISCARD
@@ -77,9 +77,9 @@ PRODUCT_PACKAGES += \
     wcnss_service
 
 PRODUCT_COPY_FILES += \
-    $(LOCAL_PATH)/configs/p2p_supplicant_overlay.conf:/system/etc/wifi/p2p_supplicant_overlay.conf \
-    $(LOCAL_PATH)/configs/wpa_supplicant_overlay.conf:/system/etc/wifi/wpa_supplicant_overlay.conf \
-    $(LOCAL_PATH)/configs/WCNSS_qcom_cfg.ini:/system/etc/wifi/WCNSS_qcom_cfg.ini
+    $(LOCAL_PATH)/configs/p2p_supplicant_overlay.conf:system/etc/wifi/p2p_supplicant_overlay.conf \
+    $(LOCAL_PATH)/configs/wpa_supplicant_overlay.conf:system/etc/wifi/wpa_supplicant_overlay.conf \
+    $(LOCAL_PATH)/configs/WCNSS_qcom_cfg.ini:system/etc/wifi/WCNSS_qcom_cfg.ini
 
 # call the proprietary setup
 $(call inherit-product-if-exists, vendor/htc/s4-common/s4-common-vendor.mk)