MAINTAINERS: adjust MELLANOX ETHERNET INNOVA DRIVERS to TLS support removal

Commit 40379a00 ("net/mlx5_fpga: Drop INNOVA TLS support") removes all
files in the directory drivers/net/ethernet/mellanox/mlx5/core/accel/, but
misses to adjust its reference in MAINTAINERS.

Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about a
broken reference.

Remove the file entry to the removed directory in MELLANOX ETHERNET INNOVA
DRIVERS.
Signed-off-by: NLukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

MAINTAINERS

@@ -12651,7 +12651,6 @@ L:	netdev@vger.kernel.org
 S:	Supported
 W:	http://www.mellanox.com
 Q:	https://patchwork.kernel.org/project/netdevbpf/list/
-F:	drivers/net/ethernet/mellanox/mlx5/core/accel/*
 F:	drivers/net/ethernet/mellanox/mlx5/core/en_accel/*
 F:	drivers/net/ethernet/mellanox/mlx5/core/fpga/*
 F:	include/linux/mlx5/mlx5_ifc_fpga.h