Update config files: re-enable arm64 regulator modules for MediaTek boards (bsc#1222818).
    
    This re-enable some regulator modules, pinctrl and RTC drivers for
    MediaTek boards which has been disabled when merging config file from
    master to stable (kernel 6.5.9->6.6) branch.
    
    This re-applies commit b197b3604a7b (Update config files: enable arm64
    regulator modules for MediaTek boards.)
    
    [js] set also KEYBOARD_MTK_PMIC=m, POWER_RESET_MT6323=n, LEDS_MT6323=n,
         and MFD_MT6397=m -- the same as commit b197b3604a7b.
    
    Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>