firmware: qcom_scm: remove a duplicative condition

Fixes coccicheck warnings:
./drivers/firmware/qcom_scm.c:324:20-22:
WARNING !A || A && B is equivalent to !A || B

Signed-off-by: Junlin Yang <yangjunlin@yulong.com>
Link: https://lore.kernel.org/r/20210311013235.1458-1-angkery@163.com


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>