dts: arm: st: wba: temporary fix to build stm32wba5x boards

Due to a mismatch in naming of debug jtrst pin name
(compared to hal_stm32) all boards based on stm32wba5x
are not compiling.
This temporary fix will solve this issue until a systematic
approach will be put in place.

Signed-off-by: Alessandro Manganaro <alessandro.manganaro@st.com>