Remove supported test cases from skip list.

This resolves openbmc/openbmc-test-automation#1450

Change-Id: I2cc9ff26293c7ea78b9ef15c817aa946e33d7682
Signed-off-by: Prashanth Katti <prkatti1@in.ibm.com>
diff --git a/test_lists/skip_test_extended b/test_lists/skip_test_extended
index 716e201..f8416b3 100644
--- a/test_lists/skip_test_extended
+++ b/test_lists/skip_test_extended
@@ -31,15 +31,10 @@
 -e Configure_Loopback_IP
 -e Configure_Network_ID
 # TODO: Invalid gateway address configuration.
--e Configure_Invalid_Gateway_String
--e Configure_Out_Of_Range_IP_For_Gateway
 -e Configure_Broadcast_IP_For_Gateway
 -e Configure_Loopback_IP_For_Gateway
 -e Configure_Multicast_IP_For_Gateway
 -e Configure_Network_ID_For_Gateway
--e Configure_Less_Octet_IP_For_Gateway
--e Configure_Hexadecimal_IP_For_Gateway
--e Configure_Special_Char_IP_For_Gateway
 -e Verify_Network_Interface_Recovery
 # Skipping RAS test cases
 -e Host_RAS