This fixes the following errors when doing "make package/install"
/home/yousong/git-repo/lede-project/lede/build_dir/target-mips_24kc_musl/root-malta/lib/functions/procd.sh: line 47: /home/yousong/git-repo/l
ede-project/lede/build_dir/target-mips_24kc_musl/root-malta/var/lock/procd_urandom_seed.lock: No such file or directory
flock: 1000: Bad file descriptor
Fixes FS#1260
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>