clk: imx: off by one in imx_lpcg_parse_clks_from_dt()

The > needs to be >= to prevent an off by one access.

Fixes: d5f1e6a2 ("clk: imx: imx8qxp-lpcg: add parsing clocks from device tree")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Link: https://lore.kernel.org/r/20220228075014.GD13685@kili


Signed-off-by: Abel Vesa <abel.vesa@nxp.com>