optee-os: fix gcc10 build for imx fork
OP-TEE OS component fails to build on gcc10 due to missing __getauxval
function. This can be resolved via disabling of outline-atomics feature
in gcc10.
Backport upstream patch [1] with adaptions to optee-imx version.
Original patch uses $(call cc-option,-mno-outline-atomics,) to disable
outline-atomics which itself is broken and required 4 additional patches
to be compatible with gcc and clang.
This is resolved in the upstream PR [2], which is applicable to the
latest upstream version.
NXP fork contains old version of OP-TEE, and therefore would receive the
update for Makefiles with new version. Since it is not required to make
current NXP version compatible with old compiler versions on master
branch - outline-atomics are disabled directly.
[1]: https://github.com/OP-TEE/optee_os/pull/3891/commits/
e07c2b062846df4385542f4e4fe08b40cf7d8191
[2]: https://github.com/OP-TEE/optee_os/pull/3891
Signed-off-by: Andrey Zhizhikin <andrey.zhizhikin@leica-geosystems.com>
