lsb: update directory of install_initd and remove_initd

lsb: update directory of install_initd and remove_initd

According to LSB specification:

http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/installinitd.html
http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/removeinitd.html

commands install_initd and remove_initd should under directory /usr/lib/lsb/.

lsb recipe creates these commands under directory ${libdir} which may
expand to /usr/lib64 when multilib is enabled on qemux86-64. That will
cause LSB command check for install_initd and remove_initd fail. So
correct it.

Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>