ipvs: rename __ip_vs_wlc_schedule in lblc and lblcr schedulers

For the sake of clarity, rename __ip_vs_wlc_schedule() in lblc.c to
__ip_vs_lblc_schedule() and the version in lblcr.c to __ip_vs_lblc_schedule().

I guess the original name stuck from a copy and paste.

Cc: Sven Wegener <sven.wegener@stealer.net>
Signed-off-by: Simon Horman <horms@verge.net.au>