phy: ti: j721e-wiz: Fix unreachable code in wiz_mode_select()

In the wiz_mode_select() function, the configuration performed for
PHY_TYPE_USXGMII is unreachable. Fix it.

Fixes: b64a85fb ("phy: ti: phy-j721e-wiz.c: Add usxgmii support in wiz driver")
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Link: https://lore.kernel.org/r/20230403094552.929108-1-s-vadapalli@ti.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>