net: mscc: ocelot: fix using match before it is set

stable inclusion
from stable-v5.10.94
commit 4496e4a427a03a73de818926946b4bf52579b95f
bugzilla: https://gitee.com/openeuler/kernel/issues/I531X9

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=4496e4a427a03a73de818926946b4bf52579b95f



--------------------------------

commit baa59504 upstream.

Clang static analysis reports this issue
ocelot_flower.c:563:8: warning: 1st function call argument
  is an uninitialized value
    !is_zero_ether_addr(match.mask->dst)) {
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The variable match is used before it is set.  So move the
block.

Fixes: 75944fda ("net: mscc: ocelot: offload ingress skbedit and vlan actions to VCAP IS1")
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Acked-by: Xie XiuQi <xiexiuqi@huawei.com>