[S6000] Fix 'show interface status' CLI needs sudo permission (sonic-…

…net#20384)

Why I did it
CLI crashes without sudo permission on Dell 6000 platform

How I did it
Add check to read eeprom only if user has root permission

How to verify it
Verified the CLI "show interface status" does not crash if user is not root

Signed-off-by: Prince George <prgeor@microsoft.com>

platform/broadcom/sonic-platform-modules-dell/s6000/sonic_platform/eeprom.py

@@ -17,6 +17,7 @@
 
 
 try:
+    import os
     import binascii
     import redis
     import struct
@@ -304,7 +305,7 @@ def __init__(self, is_plugin=False):
         super(EepromS6000, self).__init__(self.eeprom_path, None, 0, '', True)
 
         if not is_plugin:
-            self.eeprom_data = self.read_eeprom()
+            self.eeprom_data = "N/A"  if os.geteuid() != 0 else self.read_eeprom()
 
     def _is_valid_block_checksum(self, e):
         crc = self.compute_dell_crc(e[:-2])