y2k_SUITE always fails in London timezone.

[ilya-klyuchnikov]

Describe the bug
y2k_SUITE always fails in GMT0 timezone.

To Reproduce
Set Greenwich timezone (London)

make stdlib_test ARGS="-suite y2k_SUITE"

It fails.

Set any other timezone (eg Stockholm) - it passes.

Expected behavior
The standard tests should be either timezone independent or run the same way in all timezones.

Affected versions
Master

Additional context

It seems that the main root cause is this:

otp/lib/stdlib/test/y2k_SUITE.erl

Lines 158 to 159 in 457e6b6

	true ->
	Date

[garazdawi]

We are aware of this problem, but I don't think we have any good solution for it. Any suggestions about how to fix it without changing what is tested are most welcome.

[max-au]

There are more cases that assume Stockholm timezone.
@potatosalad I wonder if adding TZDATA support will solve this problem.

[max-au]

Actually my PR fixes only the time_SUITE in emulator.
Interestingly, y2k_SUITE (the one in stdlib) works fine in Pacific or Stockholm timezone.