lib: Initialize TLB management directly from coldboot/warmboot path

Currently, the remote TLB management is initialized via IPI init
which is counter intuitive. This patch initializes remote TLB
management directly from init_coldboot() and init_warmboot()
after IPI init is done.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>