examples/vmdq: fix crash when using too many pools
examples/vmdq: fix crash when using too many pools

Macro MAX_QUEUES was defined to 128, only allow 16 vmdq_pools in theory.
When running vmdq_app with more than 34 vmdq_pools, it will cause the
core_dump issue.
Change MAX_QUEUES to 1024 will solve this issue.

Signed-off-by: Xutao Sun <d02439036d9551927390c097543b0086a49df4e0@intel.com>
Acked-by: Pablo de Lara <28355d9cfe41bb8148aea0fb24f47aae8f4217a1@intel.com>
Acked-by: Jingjing Wu <64d28b617c3b4840f5ded1bfa611cba7fadfe5c7@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk