fix(nucleo_G431KB): add missing analog pin

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>

Author: fpistm

variants/STM32G4xx/G431K(6-8-B)(T-U)_G441KB(T-U)/variant_NUCLEO_G431KB.cpp

@@ -49,7 +49,8 @@ const uint32_t analogInputPin[] = {
   18, // A4
   19, // A5
   20, // A6
-  21  // A7
+  21, // A7
+  3   // A8
 };
 
 // ----------------------------------------------------------------------------

variants/STM32G4xx/G431K(6-8-B)(T-U)_G441KB(T-U)/variant_NUCLEO_G431KB.h

@@ -19,7 +19,7 @@
 #define PA10                    0
 #define PA9                     1
 #define PA12                    2
-#define PB0                     3
+#define PB0                     PIN_A8
 #define PB7                     4
 #define PA15                    5
 #define PB6                     6
@@ -78,7 +78,7 @@
 // This must be a literal
 #define NUM_DIGITAL_PINS        25
 // This must be a literal with a value less than or equal to to MAX_ANALOG_INPUTS
-#define NUM_ANALOG_INPUTS       8
+#define NUM_ANALOG_INPUTS       9
 
 // On-board LED pin number
 #ifndef LED_BUILTIN