[202012][sonic-platorm-common] submodule update

[vdahiya12]

Signed-off-by: vaibhav-dahiya vdahiya@microsoft.com
the following commit is added in sonic-platform-common

fd8cf3a (HEAD -> 202012, origin/202012) [Credo][Ycable] fix incorrect uart statistics (#296)
commit fd8cf3a9dad971b36cdd49db6ee34b918aa450cb (HEAD -> 202012, origin/202012)
Author: Xinyu Lin xinyu0123@gmail.com
Date: Fri Aug 12 09:04:39 2022 +0800

[Credo][Ycable] fix incorrect uart statistics (#296)

Description
The original get_uart_stat() will only report the last record of the uart statistic due to all record shared the same object instance.

Motivation and Context
How Has This Been Tested?

Signed-off-by: xinyu <xinyu0123@gmail.com>

Why I did it

How I did it

How to verify it

Which release branch to backport (provide reason below if selected)

• 201811
• 201911
• 202006
• 202012
• 202106
• 202111
• 202205

Description for the changelog

Link to config_db schema for YANG module changes

A picture of a cute animal (not mandatory but encouraged)