Rename SecurityPrequisite -> SecurityPrerequisite

Closes gh-2179

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/AuthenticationManagerConfiguration.java

@@ -74,7 +74,7 @@ public class AuthenticationManagerConfiguration extends
 			.getLog(AuthenticationManagerConfiguration.class);
 
 	@Autowired
-	private List<SecurityPrequisite> dependencies;
+	private List<SecurityPrerequisite> dependencies;
 
 	@Autowired
 	private SecurityProperties security;

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/SecurityPrerequisite.java

@@ -22,6 +22,6 @@ package org.springframework.boot.autoconfigure.security;
  *
  * @author Dave Syer
  */
-public interface SecurityPrequisite {
+public interface SecurityPrerequisite {
 
 }

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/SecurityProperties.java

@@ -32,7 +32,7 @@ import org.springframework.util.StringUtils;
  * @author Dave Syer
  */
 @ConfigurationProperties(prefix = "security", ignoreUnknownFields = false)
-public class SecurityProperties implements SecurityPrequisite {
+public class SecurityProperties implements SecurityPrerequisite {
 
 	/**
 	 * Order before the basic authentication access control provided by Boot. This is a