[syseeprom] Remove the trailing space in the value of VENDOR_EXT fiel…

…d in the eepromTlvInfo decode (#333)

Description
The VEMDOR_EXT field parse the data and format each in byte in hex with space as separator. But the logic leaves a space at the end of the value. This PR removes the trailing space in output of the VENDOR_EXT field in the eepromTlvInfo decode

This change is needed by 202205 branch

Motivation and Context
The trailing space at end of the VENDOR_EXT field cause the test of function get_system_eeprom_info() failed. The trailing space of the data filed is invisible char in the show platform syseeprom output while the get_system_eeprom_info() return a dictionary with trailing space in the end. This results in a mis-matched in the test case.

Signed-off-by: mlok <marty.lok@nokia.com>

sonic_platform_base/sonic_eeprom/eeprom_tlvinfo.py

@@ -490,6 +490,7 @@ def decoder(self, s, t):
             if self._TLV_DISPLAY_VENDOR_EXT:
                 for c in t[2:2 + t[1]]:
                     value += "0x%02X " % c
+                value = value.rstrip()
         elif t[0] == self._TLV_CODE_CRC_32 and len(t) == 6:
             name = "CRC-32"
             value = "0x%08X" % ((t[2] << 24) | (t[3] << 16) | (t[4] << 8) | t[5])