common/iavf: fix ARQ resource leak

common/iavf: fix ARQ resource leak

In the iavf_init_arq function, if an exception occurs in the
iavf_config_arq_regs function, and the previously applied ARQ (Admin
Receive Queue) bufs resource is released. This patch maintains the same
modification as the iavf_init_asq function to roll back resources.

Fixes: 87aca6d8d8a4 ("net/iavf/base: fix command buffer memory leak")
Cc: stable@dpdk.org
Signed-off-by: Qiming Chen <chenqiming_huawei@163.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>