UPSTREAM: crypto: x86/curve25519 - disable gcov

curve25519-x86_64.c fails to build when CONFIG_GCOV_KERNEL is enabled.
The error is "inline assembly requires more registers than available"
thrown from the `fsqr()` function. Therefore, excluding this file from
GCOV profiling until this issue is resolved. Thereby allowing
CONFIG_GCOV_PROFILE_ALL to be enabled for x86.

Signed-off-by: Joe Fradley <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
(cherry picked from commit c390c452ebeb44cb979b7374d3acc3859415e86c)

BUG=b:448564473
TEST=cro3 build --board dedede --use-flags "gcov" sys-kernel/chromeos-
     kernel-6_1

Change-Id: Ideb56b1f733d9c182a31daced3abab75530af79f
Signed-off-by: Masami Hiramatsu <[email protected]>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/7015668
Reviewed-by: Sergey Senozhatsky <[email protected]>
Commit-Queue: Sergey Senozhatsky <[email protected]>
Reviewed-by: Hikaru Nishida <[email protected]>
Commit-Queue: Hikaru Nishida <[email protected]>
Reviewed-by: Sean Paul <[email protected]>
1 file changed