regulatory: remove redundant isalpha() check
regulatory: remove redundant isalpha() check

toupper() only modifies lower-case letters, so
the isalpha() check is redundant; remove it.

Acked-by: Luis R. Rodriguez <d4fa18192c5a479e564d29c2300c2e15afd1d8d7@do-not-panic.com>
Signed-off-by: Johannes Berg <bff32994ff0f8d048f262a8388145a71b6071bfe@intel.com>

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