common/cnxk: fix bitmap usage for TM

common/cnxk: fix bitmap usage for TM

Revert change [1] to return error on case where no slab of free
resources is found. That error check break's a case where
there is a spare schedule queue to be reused that was just
allocated for sake of contiguous static TM nodes.

[1]
Fixes: 14f7e5d4bf2d ("common/cnxk: add missing checks of return values")
Cc: stable@dpdk.org
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>