dts: stm32f7: fix locations of stm32-temp-cal registers

The only supported device in the F7 family with temp-cal registers at
0x1FF07A2C is the stm32f723. All other devices use 0x1FF0F44C.

part               | DS#       | TS_CAL1     | TS_CAL2
-------------------|-----------|-------------|------------
722/723            | [DS11853] | 0x1FF0 7A2C | 0x1FF0 7A2E
745/746            | [DS10916] | 0x1FF0 F44C | 0x1FF0 F44E
750                | [DS12535] | 0x1FF0 F44C | 0x1FF0 F44E
756                | [DS10915] | 0x1FF0 F44C | 0x1FF0 F44E
765/767/768/769    | [DS11532] | 0x1FF0 F44C | 0x1FF0 F44E

[DS11853]: https://www.st.com/resource/en/datasheet/stm32f722ve.pdf
[DS10916]: https://www.st.com/resource/en/datasheet/stm32f746ng.pdf
[DS12535]: https://www.st.com/resource/en/datasheet/stm32f750v8.pdf
[DS10915]: https://www.st.com/resource/en/datasheet/stm32f756ng.pdf
[DS11532]: https://www.st.com/resource/en/datasheet/stm32f765zg.pdf



Signed-off-by: Armin Brauns <armin.brauns@embedded-solutions.at>