usb: ch9: add function defines from ch9, USB 3.0 spec

not to confuse with Table 9-7 in USB 2.0 spec
Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

include/linux/usb/ch9.h

@@ -144,6 +144,11 @@
 #define USB_INTRF_FUNC_SUSPEND	0	/* function suspend */
 
 #define USB_INTR_FUNC_SUSPEND_OPT_MASK	0xFF00
+/*
+ * Suspend Options, Table 9-7 USB 3.0 spec
+ */
+#define USB_INTRF_FUNC_SUSPEND_LP	(1 << (8 + 0))
+#define USB_INTRF_FUNC_SUSPEND_RW	(1 << (8 + 1))
 
 #define USB_ENDPOINT_HALT		0	/* IN/OUT will STALL */