Documentation: dt: dwc3: Add snps,dis_rxdet_inp3_quirk property

Add snps,dis_rxdet_inp3_quirk property which disables receiver detection
in PHY P3 power state.

Signed-off-by: Sriram Dash <sriram.dash@nxp.com>
Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

Documentation/devicetree/bindings/usb/dwc3.txt

@@ -37,6 +37,8 @@ Optional properties:
  - snps,dis_u2_susphy_quirk: when set core will disable USB2 suspend phy.
  - snps,dis_enblslpm_quirk: when set clears the enblslpm in GUSB2PHYCFG,
 			disabling the suspend signal to the PHY.
+ - snps,dis_rxdet_inp3_quirk: when set core will disable receiver detection
+			in PHY P3 power state.
  - snps,is-utmi-l1-suspend: true when DWC3 asserts output signal
 			utmi_l1_suspend_n, false when asserts utmi_sleep_n
  - snps,hird-threshold: HIRD threshold