syscalls/getrusage: Skip getrusage04 on Microsoft Hyper-V

Some of smaller Microsoft Hyper-V instances fail to pass the test:

getrusage04 0 TINFO : Expected timers granularity is 4000 us
getrusage04 0 TINFO : Using 1 as multiply factor for max [us]time increment (1000+4000us)!
getrusage04 0 TINFO : utime: 1763us; stime: 0us
getrusage04 0 TINFO : utime: 3594us; stime: 0us
getrusage04 0 TINFO : utime: 7041us; stime: 3520us
getrusage04 0 TINFO : utime: 7041us; stime: 4548us
getrusage04 0 TINFO : utime: 8124us; stime: 12187us
getrusage04 1 TFAIL : getrusage04.c:132: stime increased > 5000us:

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Cyril Hrubis <chrubis@suse.cz>

testcases/kernel/syscalls/getrusage/getrusage04.c

@@ -197,7 +197,7 @@ static void setup(void)
 {
 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
 
-	if (tst_is_virt(VIRT_XEN) || tst_is_virt(VIRT_KVM))
+	if (tst_is_virt(VIRT_XEN) || tst_is_virt(VIRT_KVM) || tst_is_virt(VIRT_HYPERV))
 		tst_brkm(TCONF, NULL, "This testcase is not supported on this"
 		        " virtual machine.");