RP2040 support

[Julius971]

Using a rp2040 i stumbled across the following error:
\Arduino\libraries\LP50XX\src\I2C_coms.h:20:8: error: conflicting declaration of C function 'int8_t i2c_init()'
20 | int8_t i2c_init();
| ^~~~~~~~

Full error:
c:\Users\Maetzig\Documents\Arduino\libraries\LP50XX\src\I2C_coms.h:20:8: error: conflicting declaration of C function 'int8_t i2c_init()'
20 | int8_t i2c_init();
| ^~~~~~~~
In file included from C:\Users\Maetzig\AppData\Local\Arduino15\packages\rp2040\hardware\rp2040\3.9.5\libraries\Wire\src/Wire.h:28,
from c:\Users\Maetzig\Documents\Arduino\libraries\LP50XX\src\LP50XX.h:15,
from c:\Users\Maetzig\Documents\Arduino\libraries\LP50XX\src\LP50XX.cpp:11:
c:\users\maetzig\appdata\local\arduino15\packages\rp2040\hardware\rp2040\3.9.5\pico-sdk\src\rp2_common\hardware_i2c\include\hardware\i2c.h:98:6: note: previous declaration 'uint i2c_init(i2c_inst_t*, uint)'
98 | uint i2c_init(i2c_inst_t i2c, uint baudrate);
| ^~~~~~~~
c:\Users\Maetzig\Documents\Arduino\libraries\LP50XX\src\LP50XX.cpp: In member function 'void LP50XX::Begin(uint8_t)':
c:\Users\Maetzig\Documents\Arduino\libraries\LP50XX\src\LP50XX.cpp:67:13: error: too few arguments to function 'uint i2c_init(i2c_inst_t, uint)'
67 | i2c_init();
| ~~~~~~~~^~
c:\users\maetzig\appdata\local\arduino15\packages\rp2040\hardware\rp2040\3.9.5\pico-sdk\src\rp2_common\hardware_i2c\include\hardware\i2c.h:98:6: note: declared here
98 | uint i2c_init(i2c_inst_t i2c, uint baudrate);
| ^~~~~~~~
In file included from c:\Users\Maetzig\Documents\Arduino\libraries\LP50XX\src\I2C_coms.cpp:1:
c:\Users\Maetzig\Documents\Arduino\libraries\LP50XX\src\I2C_coms.h:20:8: error: conflicting declaration of C function 'int8_t i2c_init()'
20 | int8_t i2c_init();
| ^~~~~~~~
In file included from C:\Users\Maetzig\AppData\Local\Arduino15\packages\rp2040\hardware\rp2040\3.9.5\libraries\Wire\src/Wire.h:28,
from c:\Users\Maetzig\Documents\Arduino\libraries\LP50XX\src\I2C_coms.h:10:
c:\users\maetzig\appdata\local\arduino15\packages\rp2040\hardware\rp2040\3.9.5\pico-sdk\src\rp2_common\hardware_i2c\include\hardware\i2c.h:98:6: note: previous declaration 'uint i2c_init(i2c_inst_t, uint)'
98 | uint i2c_init(i2c_inst_t *i2c, uint baudrate);
| ^~~~~~~~

exit status 1