clk: stm32mp1: remove redundant assignment to pointer data

The pointer data is being initialized with a value and a few lines
later on being re-assigned the same value, so this re-assignment is
redundant. Clean up the code and remove it.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20211126221239.1100960-1-colin.i.king@gmail.com


Signed-off-by: Stephen Boyd <sboyd@kernel.org>