mediatek: filogic: enable CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
The Cortex-A73 in MediaTek Filogic 880 (MT7988A) is vulnerable to
multiple Spectre variants including Spectre-BHB.
Ref: https://developer.arm.com/Arm%20Security%20Center/Speculative%20Processor%20Vulnerability
Signed-off-by: Martin Schiller <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/18182
Signed-off-by: Hauke Mehrtens <[email protected]>
(cherry picked from commit 6af46a69846e4e92fa8dcf6c3dccbaf87d513064)
Martin Schiller