EX-4141 test: extend expected number of keepalive msgs

EX-4141 test: extend expected number of keepalive msgs

Make test_165g tolerate wide range of number of
keepalive messages received by lamigo

Test-Parameters: trivial env=ONLY=165g testlist=sanity
Test-Parameters: trivial env=ONLY=165g testlist=sanity
Test-Parameters: trivial env=ONLY=165g testlist=sanity
Test-Parameters: trivial env=ONLY=165g testlist=sanity
Test-Parameters: trivial env=ONLY=165g testlist=sanity
Signed-off-by: Alexandre Ioffe <aioffe@ddn.com>
Change-Id: Ia3132d96420d571e9ed67d2baacdb25da2d52c4d
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/50778
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Jian Yu <yujian@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>