clk: efm32gg: Pass correct type to hw provider registration

Dan Carpenter reports that we're passing a pointer to a pointer
here when we should just be passing a pointer. Pass the right
pointer so that the of_clk_hw_onecell_get() sees the appropriate
data pointer on its end.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Fixes: 9337631f ("clk: efm32gg: Migrate to clk_hw based OF and registration APIs")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

drivers/clk/clk-efm32gg.c

@@ -82,6 +82,6 @@ static void __init efm32gg_cmu_init(struct device_node *np)
 	hws[clk_HFPERCLKDAC0] = clk_hw_register_gate(NULL, "HFPERCLK.DAC0",
 			"HFXO", 0, base + CMU_HFPERCLKEN0, 17, 0, NULL);
 
-	of_clk_add_hw_provider(np, of_clk_hw_onecell_get, &clk_data);
+	of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);
 }
 CLK_OF_DECLARE(efm32ggcmu, "efm32gg,cmu", efm32gg_cmu_init);