Use proper name for networking term Statmux

.changelog/27223.txt

@@ -0,0 +1,7 @@
+```release-note:enhancement
+resource/aws_medialive_multiplex_program: Add ability to update `multiplex_program_settings` in place
+```
+
+```release-note:note
+resource/aws_medialive_multiplex_program: The `statemux_settings` argument has been deprecated. Use the `statmux_settings` argument instead
+```

internal/provider/fwprovider/provider.go

@@ -16,6 +16,7 @@ import (
 	"github.com/hashicorp/terraform-provider-aws/internal/conns"
 	"github.com/hashicorp/terraform-provider-aws/internal/experimental/intf"
 	"github.com/hashicorp/terraform-provider-aws/internal/fwtypes"
+	"github.com/hashicorp/terraform-provider-aws/internal/service/medialive"
 	"github.com/hashicorp/terraform-provider-aws/names"
 )
 
@@ -350,6 +351,10 @@ func (p *fwprovider) DataSources(ctx context.Context) []func() datasource.DataSo
 func (p *fwprovider) Resources(ctx context.Context) []func() resource.Resource {
 	var resources []func() resource.Resource
 
+	resources = append(resources, func() resource.Resource {
+		return medialive.NewResourceMultiplexProgram(ctx)
+	})
+
 	for _, sp := range p.Primary.Meta().(*conns.AWSClient).ServicePackages {
 		for _, v := range sp.FrameworkResources(ctx) {
 			v, err := v(ctx)

internal/provider/provider.go

@@ -2187,7 +2187,7 @@ func New(_ context.Context) (*schema.Provider, error) {
 		// ServicePackageData is used before configuration to determine the provider's exported resources and data sources.
 		ServicePackages: []intf.ServicePackageData{
 			globalaccelerator.ServicePackageData,
-			medialive.ServicePackageData,
+			//medialive.ServicePackageData,
 			meta.ServicePackageData,
 			simpledb.ServicePackageData,
 			sts.ServicePackageData,

internal/service/medialive/medialive_test.go

@@ -15,6 +15,7 @@ func TestAccMediaLive_serial(t *testing.T) {
 		},
 		"MultiplexProgram": {
 			"basic":      testAccMultiplexProgram_basic,
+			"update":     testAccMultiplexProgram_update,
 			"disappears": testAccMultiplexProgram_disappears,
 		},
 	}