net/nfp: disable for 32-bit meson builds

From comment in the build config for the make build-system:

 "NFP PMD is not supported on 32-bit"

Therefore disable NFP for 32-bit meson builds as well as for 32-bit
make ones.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Luca Boccassi <bluca@debian.org>

drivers/net/nfp/meson.build

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: BSD-3-Clause
 # Copyright(c) 2018 Intel Corporation
 
-if not is_linux
+if not is_linux or not dpdk_conf.get('RTE_ARCH_64')
         build = false
 endif
 sources = files('nfpcore/nfp_cpp_pcie_ops.c',