As part of consolidating all common Python-based functionality into the new sonic-py-common package, this pull request:
1. Redirects all Python applications/scripts in sonic-buildimage repo which previously imported sonic_device_util or sonic_daemon_base to instead import sonic-py-common, which was added to the 201911 branch in https://github.com/Azure/sonic-buildimage/pull/5063
2. Replaces all calls to `sonic_device_util.get_platform_info()` to instead call `sonic_py_common.get_platform()` and removes any calls to `sonic_device_util.get_machine_info()` which are no longer necessary (i.e., those which were only used to pass the results to `sonic_device_util.get_platform_info()`.
3. Removes unused imports to the now-deprecated sonic-daemon-base package and sonic_device_util.py module
This is a step toward resolving https://github.com/Azure/sonic-buildimage/issues/4999
Align SFP key names with new standard defined in https://github.com/Azure/sonic-platform-common/pull/97
- hardwarerev -> hardware_rev
- serialnum -> serial
- manufacturename -> manufacturer
- modelname -> model
- Connector -> connector
Add fan control for as7116-54x
Modify sfputil.py to support sfp insert and remove events for as7116-54x
Modify port_config.nps to set port default admin down
Modify port_config.ini for add speed attr
Code format optimization like remove newline
Modify buffers_defaults_t0 and t1, change ingress_lossless_pool mode from dynamic to static
Add nephos_dac.nps and nephos_opt.nps for support difference dac and fiber module
* Upgrade SAI to v1.2.4
* Add a new supported device accton as7116
* Add maintainer info for deb
* Add mk file for accton 7116
* fix some bug for sai 1.2.4
* fix git commit error for sdk and sai
* change sai and sdk deb name
* add config file for qos support
* initial commit
* Delete qos.json
* Delete buffers.json.j2
* Delete qos.json
* Delete buffers.json.j2
* Delete buffers.json.j2
* Delete qos.json
* add support for sai 1.3.0
* add qos and buffer file for device and add sensor driver for 7116
* change buffer template
* fix fan led bug
* add support for linux-4.9
* update device driver and update sdk and sai for support kernel 4.9
* [updategraph] add support to use preset config instead of default minigraph
* Fix variable case
* Remove default minigraph case
* Remove default minigraphs and add default_sku files
* Upgrade SAI to v1.2.4
* Add a new supported device accton as7116
* Add maintainer info for deb
* Add mk file for accton 7116
* fix some bug for sai 1.2.4
* fix git commit error for sdk and sai
* change sai and sdk deb name
* add config file for qos support
* initial commit
* Delete qos.json
* Delete buffers.json.j2
* Delete qos.json
* Delete buffers.json.j2
* Delete buffers.json.j2
* Delete qos.json
* add support for sai 1.3.0
* add qos and buffer file for device and add sensor driver for 7116
* change buffer template
* Upgrade SAI to v1.2.4
* Add a new supported device accton as7116
* Add maintainer info for deb
* Add mk file for accton 7116
* fix some bug for sai 1.2.4
* fix git commit error for sdk and sai
* change sai and sdk deb name
* add config file for qos support
* initial commit
* Delete qos.json
* Delete buffers.json.j2
* Delete qos.json
* Delete buffers.json.j2
* Delete buffers.json.j2
* Delete qos.json
* add support for sai 1.3.0
* First part of skipping not used port for qos configuration
* Use active ports only to set QoS parameters for 6100
* Add a test for qos.json.j2
* Add a test for Dell S6100 buffers.json template
* Update submodulre
