drivers: usb: xhci-fsl: Change burst beat and outstanding pipelined transfers requests

This is required for better performance, and performs below tuning:
1. Enable burst length set, and define it as 4/8/16.
2. Set burst request limit to 16 requests.

Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
Signed-off-by: Sriram Dash <sriram.dash@nxp.com>
diff --git a/include/linux/usb/xhci-fsl.h b/include/linux/usb/xhci-fsl.h
index d04e3cc..15cac40 100644
--- a/include/linux/usb/xhci-fsl.h
+++ b/include/linux/usb/xhci-fsl.h
@@ -20,6 +20,9 @@
 #define USB3_PHY_TX_RX_POWERON	(USB3_PHY_RX_POWERON | USB3_PHY_TX_POWERON)
 #define USB3_PWRCTL_CLK_CMD_SHIFT   14
 #define USB3_PWRCTL_CLK_FREQ_SHIFT	22
+#define USB3_ENABLE_BEAT_BURST		0xF
+#define USB3_ENABLE_BEAT_BURST_MASK	0xFF
+#define USB3_SET_BEAT_BURST_LIMIT	0xF00
 
 /* USBOTGSS_WRAPPER definitions */
 #define USBOTGSS_WRAPRESET	BIT(17)