Fixes I2C hal issues

[XuGuohui]

Problem

1. Gen3: I2C slave RX buffer may have stale data if the last rx operation failed.
2. Gen4: I2C master may fail to re-enable due to I2C FSM(Realtek's concept: Finite State Machine) state never changes to idle

Solution

1. Reset buffer state on write-request received or error encountered
2. Abort master operation before disabling the I2C module and checks the IC_ENABLE_STATUS flag, instead of the activity flag. If we don't abort master operation and only switch to check the IC_ENABLE_STATUS flag, the following I2C master operation will fail with abort source ABRT_MASTER_DIS.

Steps to Test

Run the i2c_master_slave fixture test

Example App

user/tests/wiring/i2c_master_slave

References

N/A

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Completeness

• User is totes amazing for contributing!
• Contributor has signed CLA (Info here)
• Problem and Solution clearly stated
• Run unit/integration/application tests on device
• Added documentation
• Added to CHANGELOG.md after merging (add links to docs and issues)