Fix accidental banner regression

Fix accidental regression introduced when I tweaked the updated
banner support (commit aaed87d1).

See gh-5636

spring-boot/src/main/java/org/springframework/boot/SpringApplication.java

@@ -536,10 +536,10 @@ public class SpringApplication {
 	}
 
 	private Banner printBanner(ConfigurableEnvironment environment) {
-		if (printBannerViaDeprecatedMethod(environment)) {
+		if (this.bannerMode == Banner.Mode.OFF) {
 			return null;
 		}
-		if (this.bannerMode == Banner.Mode.OFF) {
+		if (printBannerViaDeprecatedMethod(environment)) {
 			return null;
 		}
 		ResourceLoader resourceLoader = this.resourceLoader != null ? this.resourceLoader