bitbake.conf: Add 'id' to HOSTTOOLS

The 'id' utility is used in 'rootfs_check_host_user_contaminated'
rootfs-postcommand so it must be available.

(From OE-Core rev: 6c054925d5f80790aea4cce6f8f83edc7da623b9)

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/conf/bitbake.conf

@@ -476,7 +476,7 @@ HOSTTOOLS += " \
     [ ar as awk basename bash bzip2 cat chgrp chmod chown chrpath cmp cp cpio \
     cpp cut date dd diff diffstat dirname du echo egrep env expand expr false \
     fgrep file find flock g++ gawk gcc getconf getopt git grep gunzip gzip \
-    head hostname install ld ldd ln ls make makeinfo md5sum mkdir mknod \
+    head hostname id install ld ldd ln ls make makeinfo md5sum mkdir mknod \
     mktemp mv nm objcopy objdump od patch perl pod2man pr printf pwd python python2 \
     python2.7 python3 ranlib readelf readlink rm rmdir rpcgen sed sh sha256sum \
     sleep sort split stat strings strip tail tar tee test touch tr true uname \