clk: npcm7xx: Fix incorrect kfree

The corresponding allocation is:

> npcm7xx_clk_data = kzalloc(struct_size(npcm7xx_clk_data, hws,
> 			     NPCM7XX_NUM_CLOCKS), GFP_KERNEL);

... so, kfree should be applied to npcm7xx_clk_data, not
npcm7xx_clk_data->hws.

Fixes: fcfd1436 ("clk: npcm7xx: add clock controller")
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20230923133127.1815621-1-j.neuschaefer@gmx.net


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