support new interface types CR8/SR8/KR8/LR8 which are brougnt by SAI …

…V.1.10.2 (#2167)

- What I did
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 interface types to VALID_INTERFACE_TYPE_SET

- How to verify it
Run CLI command "config interface types", new types can be accepted by the CLI.

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

scripts/portconfig

@@ -60,8 +60,8 @@ PORT_STATE_TABLE_NAME = "PORT_TABLE"
 PORT_STATE_SUPPORTED_SPEEDS = "supported_speeds"
 
 
-VALID_INTERFACE_TYPE_SET = set(['CR','CR2','CR4','SR','SR2','SR4',
-                                'LR','LR4','KR','KR4','CAUI','GMII',
+VALID_INTERFACE_TYPE_SET = set(['CR','CR2','CR4','CR8','SR','SR2','SR4','SR8',
+                                'LR','LR4','LR8','KR','KR4','KR8','CAUI','GMII',
                                 'SFI','XLAUI','KR2','CAUI4','XAUI',
                                 'XFI','XGMII', 'none'])