RK3328 UART1 and I2C0 are available on Orange Pi R1 Plus LTS 13 pin connector. Add device tree overlay files for rk3328 uart1 and i2c0.

I have noticed chatter on Github (@rpardini) around dtbo naming conventions. I'm therefore not absolutely clear on what is expected. Historic dtbo's for rk33xx are formatted with a rockchip prefix (there are some exceptions).

I've used the rockchip prefix: rockchip-rk3328-i2c0.dtbo rockchip-rk3328-uart1.dtbo

And the "Hardware" selection in armbian-config displays them correctly without the prefix.

Jira reference number AR-1509

• [x] Builds correctly and produces the dtbo's
• [x] Tested that the "Hardware" can be selected via armbian-config
• [x] Tested on orangepi-r1plus-lts

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] My changes generate no new warnings

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