nissa: use the dedicated USB mux task
The integrated muxes on ADL can take a long time to respond, so we want
to unblock PD while that runs.
TEST=task is now listed in `kernel threads`
BRANCH=none
@@ -107,6 +107,8 @@ CONFIG_PLATFORM_EC_USB_PD_PORT_MAX_COUNT=2
# TODO(b/216085548): configure USB retimers
CONFIG_PLATFORM_EC_USB_MUX_VIRTUAL=y
+# ADL integrated muxes are slow: unblock PD
+CONFIG_PLATFORM_EC_USB_MUX_TASK=y
CONFIG_PLATFORM_EC_BC12_DETECT_PI3USB9201=y
# USB-C TCPC and PPC standard options
