ARM: OMAP2+: Fix warning for omap_init_time_of()

stable inclusion
from stable-5.10.32
commit a13d4a1228abc42f05233f3212fdf139e2d720db
bugzilla: 51796

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

[ Upstream commit a3efe3f6 ]

Fix warning: no previous prototype for 'omap_init_time_of'.

Fixes: e69b4e1a ("ARM: OMAP2+: Add omap_init_time_of()")
Reported-by: kernel test robot <lkp@intel.com>
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>