Fix stack overflow in delloem setled

From: Jan Safranek <jsafrane@redhat.com>

The buffer should be bigger to hold the 10 character, which are set later
in the function.

ipmitool/lib/ipmi_delloem.c

@@ -4861,7 +4861,7 @@ CheckSetLEDSupport(struct ipmi_intf * intf)
 {
     struct ipmi_rs * rsp = NULL;
     struct ipmi_rq req = {0};
-    uint8_t data[4];
+    uint8_t data[10];
 
     SetLEDSupported = 0;
     req.msg.netfn = DELL_OEM_NETFN;