clk: tegra: tegra124-emc: Fix potential memory leak

The tegra and tegra needs to be freed in the error handling path, otherwise
it will be leaked.

Fixes: 2db04f16

 ("clk: tegra: Add EMC clock driver")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Link: https://lore.kernel.org/r/20221209094124.71043-1-yuancan@huawei.com


Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>