arm/stm32h7: Add STM32H7_USART3_GPIO_*

bsps/arm/stm32h7/console/console-usart3-cfg.c

@@ -31,11 +31,13 @@
 
 #include <stm32h7/hal.h>
 
+#include <bspopts.h>
+
 const stm32h7_uart_config stm32h7_usart3_config = {
   .gpio = {
-    .regs = GPIOB,
+    .regs = STM32H7_USART3_GPIO_REGS,
     .config = {
-      .Pin = GPIO_PIN_9 | GPIO_PIN_10,
+      .Pin = STM32H7_USART3_GPIO_PINS,
       .Mode = GPIO_MODE_AF_PP,
       .Pull = GPIO_NOPULL,
       .Speed = GPIO_SPEED_FREQ_LOW,

spec/build/bsps/arm/stm32h7/grp.yml

@@ -77,6 +77,10 @@ links:
   uid: optmemsrambackupsz
 - role: build-dependency
   uid: optprintkinstance
+- role: build-dependency
+  uid: optusart3gpiopins
+- role: build-dependency
+  uid: optusart3gpioregs
 - role: build-dependency
   uid: optvariant
 - role: build-dependency

spec/build/bsps/arm/stm32h7/optusart3gpiopins.yml

@@ -0,0 +1,20 @@
+actions:
+- get-string: null
+- define-unquoted: null
+build-type: option
+default: ( GPIO_PIN_8 | GPIO_PIN_9 )
+default-by-variant:
+- value: ( GPIO_PIN_9 | GPIO_PIN_10 )
+  variants:
+  - arm/nucleo-h743zi
+default-by-variant: []
+enabled-by: true
+format: '{}'
+links: []
+name: STM32H7_USART3_GPIO_PINS
+description: |
+  GPIO pins used for the USART3 pin configuration.
+type: build
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+copyrights:
+- Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)

spec/build/bsps/arm/stm32h7/optusart3gpioregs.yml

@@ -0,0 +1,20 @@
+actions:
+- get-string: null
+- define-unquoted: null
+build-type: option
+default: GPIOD
+default-by-variant:
+- value: GPIOB
+  variants:
+  - arm/nucleo-h743zi
+default-by-variant: []
+enabled-by: true
+format: '{}'
+links: []
+name: STM32H7_USART3_GPIO_REGS
+description: |
+  GPIO registers used for the USART3 pin configuration.
+type: build
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+copyrights:
+- Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)