packagegroup-ni-base: re-add util-linux-findfs
packagegroup-ni-base: re-add util-linux-findfs

This package needed to be moved from older NILRT to just x64 older
NILRT variable and I missed it. Re-add it.

Signed-off-by: Ioan-Adrian Ratiu <7ec73abcfe099fc5574c01312b62768070c80980@ni.com>

ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt