Improve IME cts tests that may flaky when insecure keyguard enabled

Although CL[1] introduced unlock test rule to unlock device before test,
in case that the rule may not applicable for instant app mode due to
selinux enforcement,

Added "wm disable-keybuard" command in AndroidTest.xml
for IME tests to ensure keyguard will be dismissed
before the test.

[1]: I7f854c5ee08e8139738c39eb26bcd3f167d5658a

Fix: 152572186
Test: atest SearchViewTest
Test: atest --instant SearchViewTest
Change-Id: Ica124dad78aec177d2e7257b691c6cf78c813247
1 file changed