Add crtbrand.s file

Signed-off-by: Nchenjianwen <chenjianwen15@huawei.com>

crt/aarch64/crti.s

+.include "crtbrand.s"
 .section .init
 .global _init
 .type _init,%function

crt/arm/crti.s

+.include "crtbrand.s"
 .syntax unified
 
 .section .init

musl_src.gni

@@ -1849,6 +1849,7 @@ musl_src_porting_file = [
   "src/thread/arm/syscall_cp.s",
   "src/ldso/dlclose.c",
   "ldso/dynlink.c",
+  "crt/crtbrand.s",
 ]
 
 musl_inc_hook_files = [

musl_template.gni

@@ -127,6 +127,7 @@ template("musl_libs") {
       "${target_out_dir}/${musl_ported_dir}/src/include",
       "${target_out_dir}/${musl_ported_dir}/include",
       "${target_out_dir}/${musl_inc_out_dir}",
+      "${target_out_dir}/${musl_ported_dir}/crt",
     ]
 
     cflags_basic = [