backlight: qcom-wled: Add PMI8950 compatible

PMI8950 contains WLED of version 4. Add support for it to the driver.
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20221226-msm8953-6-2-wled-v1-1-e318d4c71d05@z3ntu.xyz

drivers/video/backlight/qcom-wled.c

@@ -1731,6 +1731,7 @@ static int wled_remove(struct platform_device *pdev)
 
 static const struct of_device_id wled_match_table[] = {
 	{ .compatible = "qcom,pm8941-wled", .data = (void *)3 },
+	{ .compatible = "qcom,pmi8950-wled", .data = (void *)4 },
 	{ .compatible = "qcom,pmi8994-wled", .data = (void *)4 },
 	{ .compatible = "qcom,pmi8998-wled", .data = (void *)4 },
 	{ .compatible = "qcom,pm660l-wled", .data = (void *)4 },