Fix the rest of the tests

Author: YohDeadfall

src/tools/miri/tests/pass-dep/libc/libc-epoll-blocking.rs

@@ -1,5 +1,4 @@
-//@only-target: linux
-//@only-target: android
+//@only-target: linux android
 // test_epoll_block_then_unblock and test_epoll_race depend on a deterministic schedule.
 //@compile-flags: -Zmiri-preemption-rate=0
 

src/tools/miri/tests/pass-dep/libc/libc-epoll-no-blocking.rs

@@ -1,5 +1,4 @@
-//@only-target: linux
-//@only-target: android
+//@only-target: linux android
 
 use std::convert::TryInto;
 

src/tools/miri/tests/pass-dep/libc/libc-eventfd.rs

@@ -1,5 +1,4 @@
-//@only-target: linux
-//@only-target: android
+//@only-target: linux android
 // test_race, test_blocking_read and test_blocking_write depend on a deterministic schedule.
 //@compile-flags: -Zmiri-preemption-rate=0