doc: fix typo in usb_device docs

Fix spelling from 'USPIP' to 'USBIP'.

Signed-off-by: Phumphathai Chansriwong <[email protected]>

Author: ouoam

doc/connectivity/usb/device/usb_device.rst

@@ -510,7 +510,7 @@ prevent you from implementing a hardware-clone firmware. Instead, if possible,
 the host driver implementation should be fixed to use values from the interface
 and endpoint descriptor.
 
-Testing over USPIP in native_sim
+Testing over USBIP in native_sim
 ********************************
 
 A virtual USB controller implemented through USBIP might be used to test the USB