Fix broken copy of kl/kcm/idc files to system image

Bug: 10633915
Change-Id: I244b85dc92d50bf8bdcfdf0fe32556eff8c5d279
diff --git a/data/keyboards/keyboards.mk b/data/keyboards/keyboards.mk
index d545241..68cbd29 100644
--- a/data/keyboards/keyboards.mk
+++ b/data/keyboards/keyboards.mk
@@ -17,10 +17,10 @@
 include $(LOCAL_PATH)/common.mk
 
 PRODUCT_COPY_FILES := $(foreach file,$(framework_keylayouts),\
-    $(file):system/usr/keylayout/$(file))
+    $(file):system/usr/keylayout/$(notdir $(file)))
 
 PRODUCT_COPY_FILES += $(foreach file,$(framework_keycharmaps),\
-    $(file):system/usr/keychars/$(file))
+    $(file):system/usr/keychars/$(notdir $(file)))
 
 PRODUCT_COPY_FILES += $(foreach file,$(framework_keyconfigs),\
-    $(file):system/usr/idc/$(file))
+    $(file):system/usr/idc/$(notdir $(file)))