net/virtio: fix aarch32 build

[ upstream commit 143b627 ]

NEON vector path of the PMD needs aarch64 support. But it was
enabled for aarch32 build as well because aarch32 build had
cpu_family set to aarch64. So build for aarch32 will fail due
to unsupported intrinsics.

Fix aarch32 build by updating meson file to exclude NEON vector
implementation for aarch32.

Fixes: 7497994 ("net/virtio: add to meson build")

Signed-off-by: Juraj Linkeš <juraj.linkes@pantheon.tech>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

drivers/net/virtio/meson.build

@@ -31,7 +31,7 @@ if arch_subdir == 'x86'
 	sources += files('virtio_rxtx_simple_sse.c')
 elif arch_subdir == 'ppc'
 	sources += files('virtio_rxtx_simple_altivec.c')
-elif arch_subdir == 'arm' and host_machine.cpu_family().startswith('aarch64')
+elif arch_subdir == 'arm' and dpdk_conf.get('RTE_ARCH_64')
 	sources += files('virtio_rxtx_simple_neon.c')
 endif