bnxt_en: Free bp->ctx inside bnxt_free_ctx_mem()

We always free bp->ctx right after calling bnxt_free_ctx_mem(), so just
free it at the end of that function to make things simpler.

Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20231120234405.194542-3-michael.chan@broadcom.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>