Only half of 915 MHz ISM band allowed in US

[jamchamb]

Describe the bug.

The 915 MHz ISM band is defined as 902-928 MHz (915 MHz is the center frequency):

• https://www.ecfr.gov/current/title-47/chapter-I/subchapter-A/part-18/subpart-C/section-18.301
• https://search.itu.int/history/HistoryDigitalCollectionDocLibrary/1.44.48.en.101.pdf Article 5.150

Is there a reason the US region data only allows 915-928 MHz?

Reproduction

Provision Flipper with region_data file for US and check allowed bands.

Target

No response

Logs

Anything else?

No response