core: fix compile errors.

N/A

core/init/parser.c:18:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'int'
make: *** [out/target/product/qemu/obj/EXECUTABLES/init_intermediates/parser.o] Error 1

Change-Id: I05b1622daf22af8bc68315c2a8c45ffa7c9a4f66
Signed-off-by: liminghao <liminghao@xiaomi.com>