Fix the NUD probe counter in dumpsys of link metrics

Need to update the counter for recommended NUD probes when the SdkLevel
is S and above.  This only affects the dumpsys.

Bug: 190618044

Test: atest com.android.server.wifi

Test: manually verify that the counter is increased when
score breaches.

Signed-off-by: Mingguang Xu <mingguangxu@google.com>
Change-Id: I8defa9f2b8e1dd24e12d250fac1cc68a7f6855a3
2 files changed