v86d: set INHIBIT_UPDATERCD_BBCLASS if 'sysvinit' not in DISTRO_FEATURES

v86d: set INHIBIT_UPDATERCD_BBCLASS if 'sysvinit' not in DISTRO_FEATURES

Set INHIBIT_UPDATERCD_BBCLASS to "1" if 'sysvinit' is not in DISTRO_FEATURES.

The functionality of the init script 'fbsetup' is implemented internally in
systemd. So fbsetup is not installed if 'sysvinit' is in DISTRO_FEATURES.

That's why we need to set INHIBIT_UPDATERCD_BBCLASS to "1" to avoid
generation of update-rc.d related preinst/postinst scripts.

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>