a3xelte: defconfig: Returned to using Interactive governor as default again

This reverts commit 9351a6c9.

Now we can tuning Interactive governor using device sapecific power hal

See commit https://github.com/Exynos7580/android_device_samsung_a3xeltexx/commit/a2fb601e047967f34b60ea96fe8c274f3b81706e