ARM: dts: Drop duplicate sha2md5_fck to fix clk_disable race

stable inclusion
from stable-5.10.32
commit 9f399a9d70066c2a122e8062a2eea31b0c7bec6f
bugzilla: 51796

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

[ Upstream commit 140a7768 ]

We have a duplicate legacy clock defined for sha2md5_fck that can
sometimes race with clk_disable() with the dts configured clock
for OMAP4_SHA2MD5_CLKCTRL when unused clocks are disabled during
boot causing an "Unhandled fault: imprecise external abort".

Signed-off-by: Tony Lindgren <tony@atomide.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>