Fix MultinetworkApiTest for instant mode

add AppModeFull@ to MultinetworkApiTest since CHANGE_NETWORK_STATE
could not be granted in instant mode.

CHANGE_NETWORK_STATE is required to select networks that are up but
not in the foreground, for example, the mobile network after the linger
timer has expired.

Bug: 168809106
Bug: 171233760
Test: atest MultinetworkApiTest
      atest MultinetworkApiTest --instant

Signed-off-by: Weilun Du <wdu@google.com>
Change-Id: I37ca1a0f58d1c2ab57f8cd4489c2cfb13b0f2d39
(cherry picked from commit efe2048c48a2a9ac0812f209c87318cd68191c37)
1 file changed