Squashed 'external/devlib/' changes from 4fe9bb047..100e77ae7

100e77ae7 target: Asyncify Target._prepare_xfer()
40133abe6 target: Reduce the number of commands involved in push/pull
23196b2dd target: Use busybox for file transfer operations
7da4b314d target: Copy symlinks as files when pulling
5a7e8e3fe ssh: Fix folder pull on SSH connection
105c98dca collector/dmesg: Fix dmesg variant detection
079c7ef96 target: Remove duplicated disconnection logic
9fcc37a30 collector/ftrace: Handle missing kprobe_events file
4ad4a446f collector/ftrace: Make emitting cpu_frequency_devlib and extra idle events dependent on the configured events
9042ff944 collector/ftrace: Remove cpu_frequency_devlib event in FtraceCollector.stop()
5b6066e2b utils/android: Restore adb root state when disconnecting
e7681ee95 target: Make all Target.__init__() parameters after working_directory keyword-only
1d3256be5 target: Align Target.tempfile() with Target.make_temp()
c38621991 target: Make Target.tempfile() use Target.tmp_directory
8d1f9bdf5 target: Make Target.make_temp() use Target.tmp_directory
ea4bc3b9d target: Rework temp folder management
8f14b56a3 ftrace: Add write-to-disk mode
7f5dcb410 connection: Support all signals in BackgroundCommand.send_signal()
499ea4753 target: Check command output sanity
dabee2935 devlib: Remove sudo prompt
6a6d9f30d collector/ftrace: Fix FtraceCollector.kprobe_events attr name
e927e2f2c collector/dmesg: Allow not raising on dmesg output parsing failure
d4d9c92ae ftrace: Preserve kprobe events during trace-cmd reset
8773c1042 utils/asyn: Ensure _AsyncPolymorphicFunction is not detected as a coroutine function
b6da67d12 utils/asyn: Ensure that we propagate docstrings in asyncf()
fb4e15569 utils/asyn: Replace nest_asyncio with greenlet
b2e19d333 utils/asyn: Factor out the calls to asyncio.run
165b87f24 target: Allow reuse of a connection once the owning thread is terminated
1d6a007ba tests: Add tests for nested async support
796b9fc1e utils/asyn: Fix memoized_method.__set_name__
54a5732c6 tools/setup_host.sh: Remove unused package cpu-checker
REVERT: 4fe9bb047 ftrace: Add write-to-disk mode
REVERT: 95df75062 connection: Support all signals in BackgroundCommand.send_signal()
REVERT: d07cc5868 utils/asyn: Replace nest_asyncio with greenlet
REVERT: 3ada269ce utils/asyn: Factor out the calls to asyncio.run
REVERT: 9f5c19dad target: Allow reuse of a connection once the owning thread is terminated
REVERT: f343642de tests: Add tests for nested async support
REVERT: d63ea8e6e utils/asyn: Fix memoized_method.__set_name__

git-subtree-dir: external/devlib
git-subtree-split: 100e77ae721799539f6343102e9e4fa405881029