[PATCH 1/3] bsps/stm32h7: set default printk instance on nucleo-h743zi BSP to USART3

[Karel Gardas]

This is the default configuration of the board out of the box.
Any other possible/supported configuration requires soldering,
so definitely not out of the box experience.

Sponsored-By:	Precidata
---
 spec/build/bsps/arm/stm32h7/optprintkinstance.yml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/spec/build/bsps/arm/stm32h7/optprintkinstance.yml b/spec/build/bsps/arm/stm32h7/optprintkinstance.yml
index 6eaf4a2011..5e87aaab1f 100644
--- a/spec/build/bsps/arm/stm32h7/optprintkinstance.yml
+++ b/spec/build/bsps/arm/stm32h7/optprintkinstance.yml
@@ -3,7 +3,10 @@ actions:
 - define-unquoted: null
 build-type: option
 default: stm32h7_usart1_instance
-default-by-variant: []
+default-by-variant:
+- value: stm32h7_usart3_instance
+  variants:
+  - arm/nucleo-h743zi
 enabled-by: true
 format: '{}'
 links: []
-- 
2.25.1