Incorrect pin definition for the TEMP_0_PIN (first extruder thermistor)

[janoc]

The file pins_BTT_SKR_PRO_common.h has incorrect definition of the extruder thermistor pin. Line 221 contains:

//
// Temperature Sensors
//
#define TEMP_0_PIN                          PF7//PF4   // T1 <-> E0

However the correct pin on SKR PRO 1.1 and 1.2 is PF4. Stock Marlin also contains PF4 here.

No idea why this has been changed but it breaks the thermistor functionality. The firmware will panic due to the thermal runaway protection being triggered by a nonsensical thermistor reading at runtime. As-is this code is unusable on the SKR Pro v1.1