capi/aws: bump controller log level to debug

According to [1] v=4 is debug level.

[1] https://github.com/kubernetes-sigs/cluster-api-provider-aws/blob/main/pkg/logger/logger.go#L30

Author: r4f4

pkg/clusterapi/system.go

@@ -125,7 +125,7 @@ func (c *system) Run(ctx context.Context, installConfig *installconfig.InstallCo
 			c.getInfrastructureController(
 				&AWS,
 				[]string{
-					"-v=2",
+					"-v=4",
 					"--metrics-bind-addr=0",
 					"--health-addr={{suggestHealthHostPort}}",
 					"--webhook-port={{.WebhookPort}}",