clk: clk-axi-clkgen: remove unneeded semicolon

Remove unnecessary semicolons reported by Coccinelle/coccicheck and the
semantic patch at scripts/coccinelle/misc/semicolon.cocci.

Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Link: https://lore.kernel.org/r/20250729022735.1437560-1-nichen@iscas.ac.cn


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