This patch adds the support for LoongArch architecture. Meanwhile,
backports bugfixes for ixgbe driver needed by LoongArch, and removes
linking to i40e driver for LoongArch because it was not supported in
this version.
Signed-off-by: Min Zhou <zhoumin@loongson.cn>
(cherry picked from commit 53eeb4c6d07277ff13cd526606d63b08e02b8d38)
