ARM: at91: pm: avoid soft resetting AC DLL

ARM: at91: pm: avoid soft resetting AC DLL

[ Upstream commit cef8cdc0d0e7c701fe4dcfba4ed3fd25d28a6020 ]

Do not soft reset AC DLL as controller is buggy and this operation my
introduce glitches in the controller leading to undefined behavior.

Fixes: f0bbf17958e8 ("ARM: at91: pm: add self-refresh support for sama7g5")
Depends-on: a02875c4cbd6 ("ARM: at91: pm: fix self-refresh for sama7g5")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20221026124114.985876-2-claudiu.beznea@microchip.com
Signed-off-by: Sasha Levin <sashal@kernel.org>