rename nxp_sof_received to nxp_int_sof

implementing freeRTOS integration
change get_period_frame_list from using lst_idx to hostid (fix bug)
adding polling interval supported for interrupt: 1ms, 2ms, 4ms, 8ms
- add interval_ms to get_period_head function
- add bInterval to qhd_init
- add support for sub-frame (less than 8 micro frames) interval
- add bunch of test for interrupt different intervals

tests/test/host/ehci/test_ehci_usbh_hcd_integration.c

@@ -59,7 +59,7 @@ uint8_t dev_addr;
 uint8_t hostid;
 ehci_registers_t * regs;
 ehci_qhd_t *async_head;
-ehci_qhd_t *period_head;
+ehci_qhd_t *period_head_arr;
 
 void setUp(void)
 {
@@ -84,7 +84,7 @@ void setUp(void)
 
   regs = get_operational_register(hostid);
   async_head =  get_async_head( hostid );
-  period_head = get_period_head( hostid );
+  period_head_arr = get_period_head( hostid, 1 );
   regs->usb_sts = 0; // hcd_init clear usb_sts by writing 1s
 }