go: upgrade 1.16.2 -> 1.16.3

This is bugfix release in 1.16 series [1]

[1] https://github.com/golang/go/issues?q=milestone%3AGo1.16.3+label%3ACherryPickApproved



Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 84188e7b)
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>