chore(wba): update variants after cube update

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

Author: fpistm

variants/STM32WBAxx/WBA5MJGH/boards_entry.txt

@@ -8,7 +8,7 @@ GenWBA.menu.pnum.GENERIC_WBA5MJGHX=Generic WBA5MJGHx
 GenWBA.menu.pnum.GENERIC_WBA5MJGHX.upload.maximum_size=1048576
 GenWBA.menu.pnum.GENERIC_WBA5MJGHX.upload.maximum_data_size=131072
 GenWBA.menu.pnum.GENERIC_WBA5MJGHX.build.board=GENERIC_WBA5MJGHX
-GenWBA.menu.pnum.GENERIC_WBA5MJGHX.build.product_line=
+GenWBA.menu.pnum.GENERIC_WBA5MJGHX.build.product_line=STM32WBA5Mxx
 GenWBA.menu.pnum.GENERIC_WBA5MJGHX.build.variant=STM32WBAxx/WBA5MJGH
 GenWBA.menu.pnum.GENERIC_WBA5MJGHX.debug.svd_file={runtime.tools.STM32_SVD.path}/svd/STM32WBAxx/STM32WBA55.svd