drivers/perf: hisi: Add TLP filter support

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I60FNG



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The PMU support to filter the TLP when counting the bandwidth with below
options:

- only count the TLP headers
- only count the TLP payloads
- count both TLP headers and payloads

In the current driver it's default to count the TLP payloads only, which
will have an implicity side effects that on the traffic only have header
only TLPs, we'll get no data.

Make this user configuration through "len_mode" parameter and make it
default to count both TLP headers and payloads when user not specified.
Also update the documentation for it.

Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Signed-off-by: Junhao He <hejunhao3@huawei.com>
Reviewed-by: Yang Jihong <yangjihong1@huawei.com>
Reviewed-by: Jay Fang <f.fangjian@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>