configs/stm32mp157c_dk2_defconfig: unbreak TF-A build with GCC >= 12
With the move to default to GCC 12 in commit e0091e42eef9 (package/gcc:
switch to gcc 12.x as the default), TF-A now fails to build as a warning is
generated and it builds with -Werror:
CC plat/st/stm32mp1/bl2_plat_setup.c
drivers/st/io/io_stm32image.c: In function ‘stm32image_partition_read’:
drivers/st/io/io_stm32image.c:249:13: error: ‘result’ may be used uninitialized [-Werror=maybe-uninitialized]
249 | int result;
| ^~~~~~
cc1: all warnings being treated as errors
This is fixed in TF-A v2.6 with commit c1d732d0db24 (fix(io_stm32image):
uninitialized variable warning), but I do not have the board to verify if
v2.6 works, so instead disable -Werror by passsing E=0.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Peter Korsgaard