net/hinic: Support doorbell BAR size of 256K in SDI mode

driver inclusion
category: bugfix
bugzilla: 4472

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A VF in 1822 needs to consume 1M + 48k of VF space, and each PCI-bridge
reserves io memory of 4M, so after hot-plugging more than 3 network cards,
there will be insufficient bar space. To solve this problem, modify the
bar space size in the 1822 SDI bare metal and virtual machine scenarios.

Signed-off-by: Chiqijun <chiqijun@huawei.com>
Reviewed-by: Luoshaokai <luoshaokai@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>