Fix typo in DynamicRegistrationBean class name

Closes gh-11606

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/servlet/AbstractFilterRegistrationBean.java

@@ -42,7 +42,7 @@ import org.springframework.util.Assert;
  * @author Phillip Webb
  */
 abstract class AbstractFilterRegistrationBean<T extends Filter>
-		extends DynaimcRegistrationBean<FilterRegistration.Dynamic> {
+		extends DynamicRegistrationBean<Dynamic> {
 
 	/**
 	 * Filters that wrap the servlet request should be ordered less than or equal to this.

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/servlet/DynamicRegistrationBean.java

@@ -37,7 +37,7 @@ import org.springframework.util.StringUtils;
  * @author Phillip Webb
  * @since 2.0.0
  */
-public abstract class DynaimcRegistrationBean<D extends Registration.Dynamic>
+public abstract class DynamicRegistrationBean<D extends Registration.Dynamic>
 		extends RegistrationBean {
 
 	private static final Log logger = LogFactory.getLog(RegistrationBean.class);

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/servlet/ServletContextInitializerBeans.java

@@ -246,7 +246,7 @@ public class ServletContextInitializerBeans
 	}
 
 	/**
-	 * Adapter to convert a given Bean type into a {@link DynaimcRegistrationBean} (and
+	 * Adapter to convert a given Bean type into a {@link DynamicRegistrationBean} (and
 	 * hence a {@link ServletContextInitializer}.
 	 */
 	private interface RegistrationBeanAdapter<T> {

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/servlet/ServletRegistrationBean.java

@@ -51,7 +51,7 @@ import org.springframework.util.ObjectUtils;
  * @see ServletContext#addServlet(String, Servlet)
  */
 public class ServletRegistrationBean<T extends Servlet>
-		extends DynaimcRegistrationBean<ServletRegistration.Dynamic> {
+		extends DynamicRegistrationBean<ServletRegistration.Dynamic> {
 
 	private static final Log logger = LogFactory.getLog(ServletRegistrationBean.class);