MKS SBase Digipot init fix

[Bob-the-Kuhn]

MKS SBASE boards no longer compile because of a bug introduced by PR #16584. This PR replaced digipot_mcp4451_init() with configure_i2c() but the replacement was not completed.

CHANGES:

• digipot_mcp4451.cpp - replace configure_i2c() with configure_i2c(0xFF). That routine reqwuires one argument. The 0xFF value guarantees the faster speed is always selected (the speed specified by digipot_mcp4451_init).
• digipot_mcp4451_I2C_routines.h - add declaration for configure_i2c

This fix has been tested on a MKS SBase V1.3 board.

[0r31]

Hi @Bob-the-Kuhn ,

The introduction of the i2c_util stuff makes compilation failing using digipot or u8g.
That's why I already created a PR to solve both issues : #16636 .

Regards,
Orel

[Bob-the-Kuhn]

PR #16636 includes this fix plus another. Closing this PR.