tests: posix: portability: fs: Increase number of fds

jukkar · cfriedt · commit 3af17bf8b1a1 · 2025-10-30T14:23:46.000-04:00
The test had too few file descriptors.

Signed-off-by: Jukka Rissanen &lt;jukka.rissanen@nordicsemi.no&gt;
diff --git a/tests/posix/fs/prj.conf b/tests/posix/fs/prj.conf
@@ -8,4 +8,4 @@ CONFIG_ZTEST=y
 CONFIG_MAIN_STACK_SIZE=4096
 CONFIG_ZTEST_STACK_SIZE=2048
 CONFIG_EVENTFD=n
-CONFIG_ZVFS_OPEN_ADD_SIZE_POSIX=5
+CONFIG_ZVFS_OPEN_ADD_SIZE_POSIX=15
