[sonic-platform-common][sonic-platform-daemons] submodule update

c87fd2d (HEAD -> 202012, origin/202012) [Credo][Ycable] enhancement and
error exception for some APIs (sonic-net#303)
5e990c2 [ycable] add definitions of some new API's for Y-Cable
infrastructure (sonic-net#301)

5f3d0a7 (HEAD -> 202012, origin/202012) [ycabled] fix insert events from xcvrd;cleanup some mux toggle logic (sonic-net#287

Signed-off-by: vaibhav-dahiya <[email protected]>