phy: qcom: m31-eusb2: fix match data santity check

The device_get_match_data() helper returns NULL if a new entry is ever
added without corresponding match data.

Fixes: 9c85048 ("phy: qcom: Add M31 based eUSB2 PHY driver")
Cc: Wesley Cheng <quic_wcheng@quicinc.com>
Cc: Melody Olvera <melody.olvera@oss.qualcomm.com>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250617080503.11262-1-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Author: jhovold

drivers/phy/qualcomm/phy-qcom-m31-eusb2.c

@@ -253,7 +253,7 @@ static int m31eusb2_phy_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	data = device_get_match_data(dev);
-	if (IS_ERR(data))
+	if (!data)
 		return -EINVAL;
 	phy->data = data;