[Chef] Fix Read/Write Attributes of AirPurifier's clusters. (#33848)

* Fix TLV Reader in LastChangedTime

* Restyled by whitespace

* Restyled by clang-format

* Fix debug messages

* Using BufferReader / BufferWriter to avoid Endianness

Using BufferReader / BufferWriter to avoid Endianness issue

* Restyled by clang-format

* Fix DegradationDirection Get

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Co-authored-by: Restyled.io <commits@restyled.io>

Author: erwinpan1