Avoid killing /usr/include when cleaning 'hal'

package/hal/hal.mk

@@ -70,7 +70,7 @@ $(TARGET_DIR)/$(HAL_TARGET_BINARY): $(HAL_DIR)/hald/hald
 	rm -rf $(TARGET_DIR)/usr/share/hal/device-manager
 	rm -rf $(TARGET_DIR)/usr/lib/pkgconfig
 	# remove _everything_ in $(TARGET_DIR)/usr/include?
-	rm -rf $(TARGET_DIR)/usr/include
+	# rm -rf $(TARGET_DIR)/usr/include
 	rm -rf $(TARGET_DIR)/usr/lib/libhal*.so
 	rm -rf $(TARGET_DIR)/usr/lib/libhal*.la
 	rm -rf $(TARGET_DIR)/usr/lib/hal