Add --host param to libx264 Makefile, fix configuring error on x64 host

Author: SwimmingTiger

build-hnp/libx264/Makefile

@@ -3,6 +3,6 @@ include ../utils/Makefrag
 SOURCE_URL = https://code.videolan.org/videolan/x264/-/archive/stable/x264-stable.tar.bz2
 SOURCE_FILE = x264-stable.tar.bz2
 SOURCE_DIR = x264-stable
-CONFIG_ARGS = --prefix=$(PREFIX) --enable-shared
+CONFIG_ARGS = --prefix=$(PREFIX) --host=aarch64-unknown-linux-musl --enable-shared
 
 $(eval $(call define_autotools_package))