nds32: Fix the items of hwcap_str ordering issue.

[ Upstream commit a5234068e6dc18ae5300d678fbf3e129d9b93f78 ]

The hwcap_str should be set in a correct order according to HWCAP_xx.
We also add the missing "fpu_dp" to it.

Signed-off-by: Nylon Chen <nylon7@andestech.com>
Acked-by: Greentime Hu <greentime@andestech.com>
Signed-off-by: Greentime Hu <greentime@andestech.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>