remove LEDC_HIGH_SPEED_MODE for C3, S2, S3

[martgras]

Only ESP32 supports LEDC_HIGH_SPEED_MODE
ESP32-S2, ESP32-C3 and ESP32-S3 don't support it
See https://docs.espressif.com/projects/esp-idf/en/latest/esp32c3/api-reference/peripherals/ledc.html#functionality-overview

What does this implement/fix?

Use highspeed mode only if supported by the chip

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Other

Related issue or feature (if applicable): fixes esphome/issues#2748

Pull request in esphome-docs with documentation (if applicable): esphome/esphome-docs#

Test Environment

• ESP32
• ESP32 IDF
• ESP8266

Example entry for config.yaml:

# Example config.yaml

Checklist:

• The code change is tested and works locally.
• Tests have been added to verify that the new code works (under tests/ folder).

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated in esphome-docs.

[probot-esphome]

Hey there @OttoWinter, mind taking a look at this pull request as it has been labeled with an integration (ledc) you are listed as a code owner for? Thanks!
_{^{(message by CodeOwnersMention)}}

[jesserockz]

I had almost the same changes in a branch