Fix LockTaskTest failed on data-only device

There's no dialer pre-installed in data-only device,
so change @RequireFeature(FEATURE_TELEPHONY)
to @RequireFeature(FEATURE_TELEPHONY_CALLING)
for failed case launchDefaultDialerInLockTaskMode_launches.

Bug: 301902971
Test: atest android.devicepolicy.cts.LockTaskTest
Change-Id: I134883acccc7dde32bd439fb09b87dc7a2560b4b
Merged-In: I134883acccc7dde32bd439fb09b87dc7a2560b4b
1 file changed