clk: bcm: rpi: Fix off by one in raspberrypi_discover_clocks()

Smatch detected an off by one in this code:
drivers/clk/bcm/clk-raspberrypi.c:374 raspberrypi_discover_clocks()
error: buffer overflow 'data->hws' 16 <= 16

The data->hws[] array has RPI_FIRMWARE_NUM_CLK_ID elements so the >
comparison needs to changed to >=.

Fixes: 12c90f3f27bb ("clk: bcm: rpi: Add variant structure")
Signed-off-by: Dan Carpenter <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Reviewed-by: Stefan Wahren <[e-mail]>
Reviewed-by: Florian Fainelli <[e-mail]>
Signed-off-by: Stephen Boyd <[e-mail]>

drivers/clk/bcm/clk-raspberrypi.c

···
 	while (clks->id) {
 		struct raspberrypi_clk_variant *variant;
 
-		if (clks->id > RPI_FIRMWARE_NUM_CLK_ID) {
+		if (clks->id >= RPI_FIRMWARE_NUM_CLK_ID) {
 			dev_err(rpi->dev, "Unknown clock id: %u (max: %u)\n",
-					   clks->id, RPI_FIRMWARE_NUM_CLK_ID);
+					   clks->id, RPI_FIRMWARE_NUM_CLK_ID - 1);
 			return -EINVAL;
 		}