REGTEST: exclude osx and generic targets for 40be_2srv_odd_health_checks

As explained in the commit below, this test relies on TCP_DEFER_ACCEPT
which is not available everywhere, and as such fails on OSX as well :
15685c791 ("REGTEST: Exclude freebsd target for some reg tests.")
diff --git a/reg-tests/checks/40be_2srv_odd_health_checks.vtc b/reg-tests/checks/40be_2srv_odd_health_checks.vtc
index 84fd6b1..eaa8355 100644
--- a/reg-tests/checks/40be_2srv_odd_health_checks.vtc
+++ b/reg-tests/checks/40be_2srv_odd_health_checks.vtc
@@ -2,7 +2,7 @@
 feature ignore_unknown_macro
 
 #REQUIRE_VERSION=1.8
-#EXCLUDE_TARGETS=freebsd
+#EXCLUDE_TARGETS=freebsd,osx,generic
 #REGTEST_TYPE=slow
 
 # This script start 40 servers named s0 up to s39.