soc: qcom: icc-bwmon: Remove unnecessary print function dev_err()

Eliminate the follow coccicheck warning:
./drivers/soc/qcom/icc-bwmon.c:349:2-9: line 349 is redundant because platform_get_irq() already prints an error

Fixes: b9c2ae6c ("soc: qcom: icc-bwmon: Add bandwidth monitoring driver")
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220714075532.104665-1-yang.lee@linux.alibaba.com