This commit fixes the bug that c2n requests are skiped when updating vipServices in serveConfig. This then resulted
netmap update being skipped which caused inaccuracy of Capmap info on client side. After this fix, client always
inform control about it's vipServices config changes.
Fixestailscale/corp#29219
(cherry picked from commit 7b06532ea108bd7d12785125c2423a1a4e9987b3)
Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>
Co-authored-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>