mariadb: fix thread stack overrun

ref: https://jira.mariadb.org/browse/MDEV-36051

As worked though and tested and documented in the
- https://github.com/MariaDB/server/blob/main/configure.cmake#L668
- https://github.com/MariaDB/server/blob/main/include/my_sys.h#L1021

The following should be set for all except parisc and sparc
- STACK_DIRECTION=-1

mariadbd is now starting successfully on releases since 11.4.3.

Additionally cleanup default my.cnf
[Warning] --innodb-file-per-table is deprecated and will be removed in a future release
[Warning] --innodb-flush-method is deprecated and will be removed in a future release

packages/addons/service/mariadb/package.mk

@@ -22,7 +22,6 @@ PKG_ADDON_TYPE="xbmc.service"
 configure_package() {
   PKG_CMAKE_OPTS_HOST=" \
     -DCMAKE_INSTALL_MESSAGE=NEVER \
-    -DSTACK_DIRECTION=-1 \
     -DHAVE_IB_GCC_ATOMIC_BUILTINS=1 \
     -DCMAKE_CROSSCOMPILING=OFF"
 
@@ -31,7 +30,6 @@ configure_package() {
     -DCMAKE_BUILD_TYPE=Release \
     -DBUILD_CONFIG=mysql_release \
     -DFEATURE_SET=classic \
-    -DSTACK_DIRECTION=1 \
     -DDISABLE_LIBMYSQLCLIENT_SYMBOL_VERSIONING=ON \
     -DCMAKE_CROSSCOMPILING=ON \
     -DIMPORT_EXECUTABLES=${PKG_BUILD}/.${HOST_NAME}/import_executables.cmake \

packages/addons/service/mariadb/source/config/my.cnf

@@ -154,10 +154,8 @@ default_storage_engine	= InnoDB
 
 innodb_buffer_pool_size	= 256M
 innodb_log_buffer_size	= 8M
-innodb_file_per_table	= 1
 innodb_open_files	= 400
 innodb_io_capacity	= 400
-innodb_flush_method	= O_DIRECT
 character-set-server=utf8    # This avoids potential pitfalls with text in exotic codepages.
 #skip-name-resolve            # Avoids name resolving in the local network, thus reducing overhead. That also means that all connections are done by IP only.
 # well, not really according to use cases :(