libdouble-conversion: Switch to CP instead of INSTALL_DATA

INSTALL_DATA turns symlinks into files, increasing the size.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

libs/libdouble-conversion/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libdouble-conversion
 PKG_VERSION:=3.1.5
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=double-conversion-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://codeload.github.com/google/double-conversion/tar.gz/v$(PKG_VERSION)?
@@ -50,7 +50,7 @@ CMAKE_OPTIONS += \
 
 define Package/libdouble-conversion/install
 	$(INSTALL_DIR) $(1)/usr/lib
-	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/lib*.so* $(1)/usr/lib/
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/lib*.so* $(1)/usr/lib/
 endef
 
 $(eval $(call BuildPackage,libdouble-conversion))