[yang] Support new interface types CR8/SR8/KR8/LR8 (#10826)

- Why I did it
With SAI V.1.10.2, new interface types CR8/SR8/KR8/LR8 have been introduced, we should also support them from the CLI configuration.

- How I did it
Add new enum for the new interface types

- How to verify it
Run the "config interface type" command to verify new interface types can be accepted and handled correctly.

Signed-off-by: Kebo Liu <kebol@nvidia.com>

src/sonic-yang-models/yang-templates/sonic-types.yang.j2

@@ -136,13 +136,17 @@ module sonic-types {
             enum CR;
             enum CR2;
             enum CR4;
+            enum CR8;
             enum SR;
             enum SR2;
             enum SR4;
+            enum SR8;
             enum LR;
             enum LR4;
+            enum LR8;
             enum KR;
             enum KR4;
+            enum KR8;
             enum CAUI;
             enum GMII;
             enum SFI;