Fix AuthorizationPolicy typo (#2894)

Signed-off-by: Faseela K <faseela.k@est.tech>

Author: kfaseela

security/v1/authorization_policy.pb.go

@@ -191,7 +191,7 @@ import "type/v1beta1/selector.proto";
 // {{<tab name="v1" category-value="v1">}}
 // ```yaml
 // apiVersion: security.istio.io/v1
-// kind: AuthorizaionPolicy
+// kind: AuthorizationPolicy
 // metadata:
 //   name: httpbin
 //   namespace: foo

security/v1/authorization_policy.proto

@@ -173,7 +173,7 @@ import "type/v1beta1/selector.proto";
 // {{<tab name="v1beta1" category-value="v1beta1">}}
 // ```yaml
 // apiVersion: security.istio.io/v1beta1
-// kind: AuthorizaionPolicy
+// kind: AuthorizationPolicy
 // metadata:
 //   name: httpbin
 //   namespace: foo
@@ -190,7 +190,7 @@ import "type/v1beta1/selector.proto";
 // {{<tab name="v1" category-value="v1">}}
 // ```yaml
 // apiVersion: security.istio.io/v1
-// kind: AuthorizaionPolicy
+// kind: AuthorizationPolicy
 // metadata:
 //   name: httpbin
 //   namespace: foo