mwifiex: return -EBUSY if specific scan request cannot be honored
mwifiex: return -EBUSY if specific scan request cannot be honored

Previous patch "mwifiex: return -EBUSY if scan request cannot.."
corrected regular scan request only. There is another case for
specific scan that needs the same handling.

Also, removed !req_ssid check as it has already been validated
by caller.

Signed-off-by: Bing Zhao <abbaae6378dda6b8d65fe6bd0f8beb334a5e4c4f@marvell.com>
Signed-off-by: Paul Stewart <3c7b6905653b79322a22957b2a611e2638095229@chromium.org>
Reviewed-by: Ryan Cairns <01b618abe573c4fe9e8bd701c0194deadb0e7835@chromium.org>
Signed-off-by: Amitkumar Karwar <7343c7ffb424bf4c3ebd1cd0c94117b3c12118ff@marvell.com>
Signed-off-by: John W. Linville <2a53bac7a5d324865ef46ec4c38b2c0fba1456b4@tuxdriver.com>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs