platform/x86: thinkpad_acpi: Add X1 Carbon Gen 9 second fan support

stable inclusion
from stable-5.10.46
commit 3fb6c6acc1a77e9516c0514bf74767dfa982bf99
bugzilla: 168323
CVE: NA

--------------------------------

[ Upstream commit c0e0436c ]

The X1 Carbon Gen 9 uses two fans instead of one like the previous
generation. This adds support for the second fan. It has been tested
on my X1 Carbon Gen 9 (20XXS00100) and works fine.

Signed-off-by: Til Jasper Ullrich <tju@tju.me>
Link: https://lore.kernel.org/r/20210525150950.14805-1-tju@tju.me


Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Acked-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>