tests/boot-sector: Increase time-out to 90 seconds

Since the PXE tester runs rather slow on ppc64 with tcg, there
is a chance that we hit the 60 seconds timeout on machines that
have a heavy CPU load. So let's increase the timeout to ease
the situation.
Signed-off-by: NThomas Huth <thuth@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

tests/boot-sector.c

@@ -106,9 +106,9 @@ void boot_sector_test(void)
     uint16_t signature;
     int i;
 
-   /* Wait at most 1 minute */
+    /* Wait at most 90 seconds */
 #define TEST_DELAY (1 * G_USEC_PER_SEC / 10)
-#define TEST_CYCLES MAX((60 * G_USEC_PER_SEC / TEST_DELAY), 1)
+#define TEST_CYCLES MAX((90 * G_USEC_PER_SEC / TEST_DELAY), 1)
 
     /* Poll until code has run and modified memory.  Once it has we know BIOS
      * initialization is done.  TODO: check that IP reached the halt