media: stb0899: Simplify check

chip_id is an unsigned number, it can never be < 0

Fixes cocci check:
drivers/media/dvb-frontends/stb0899_drv.c:1280:8-15: WARNING: Unsigned expression compared with zero: chip_id > 0

Link: https://lore.kernel.org/linux-media/20240429-fix-cocci-v3-2-3c4865f5a4b0@chromium.org
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

Author: ribalda

drivers/media/dvb-frontends/stb0899_drv.c

@@ -1277,7 +1277,7 @@ static int stb0899_get_dev_id(struct stb0899_state *state)
 	dprintk(state->verbose, FE_ERROR, 1, "Demodulator Core ID=[%s], Version=[%d]", (char *) &demod_str, demod_ver);
 	CONVERT32(STB0899_READ_S2REG(STB0899_S2FEC, FEC_CORE_ID_REG), (char *)&fec_str);
 	fec_ver = STB0899_READ_S2REG(STB0899_S2FEC, FEC_VER_ID_REG);
-	if (! (chip_id > 0)) {
+	if (!chip_id) {
 		dprintk(state->verbose, FE_ERROR, 1, "couldn't find a STB 0899");
 
 		return -ENODEV;