ANDROID: dm: sync inline crypto support with patches going upstream

Replace the following patches with upstream versions
(well, almost upstream; as of 2021-02-12 they are queued for 5.12 at
https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git/log/?h=for-next

):

	ANDROID-dm-add-support-for-passing-through-inline-crypto-support.patch
	ANDROID-dm-enable-may_passthrough_inline_crypto-on-some-targets.patch
	ANDROID-block-Introduce-passthrough-keyslot-manager.patch

Also, resolve conflicts with the following non-upstream patches for
hardware-wrapped key support.  Notably, we need to handle the field
blk_keyslot_manager::features in a few places:

	ANDROID-block-add-hardware-wrapped-key-support.patch
	ANDROID-dm-add-support-for-passing-through-derive_raw_secret.patch

Finally, update non-upstream device-mapper targets (dm-bow and
dm-default-key) to use the new way of specifying inline crypto
passthrough support (DM_TARGET_PASSES_CRYPTO) rather than the old way
(may_passthrough_inline_crypto).  These changes should be folded into:

	ANDROID-dm-bow-Add-dm-bow-feature.patch
	ANDROID-dm-add-dm-default-key-target-for-metadata-encryption.patch

Test: tested on db845c; verified that inline crypto support gets passed
      through over dm-linear.
Bug: 162257830
Change-Id: I5e3dea1aa09fc1215c90857b5b51d9e3720ef7db
Signed-off-by: Eric Biggers <ebiggers@google.com>