Add an NSBluetoothAlwaysUsageDescription string

For apps compiled against the macOS 11.0 SDK, TCC will crash
if the NSBluetoothAlwaysUsageDescription string isn't available
and Bluetooth APIs are called.

Provide an NSBluetoothAlwaysUsageDescription string. For now, just
reuse the generic IDS_RUNTIME_PERMISSION_OS_REASON_TEXT string,
but in the future, perhaps better strings could be used.

Bug: 1126246
Fixed: 1134360
Change-Id: I6252d43fb98ce5bd4be0504260347b933c09834b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2466148Reviewed-by: Reilly Grant <reillyg@chromium.org>
Commit-Queue: Reilly Grant <reillyg@chromium.org>
Commit-Queue: Avi Drissman <avi@chromium.org>
Auto-Submit: Avi Drissman <avi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#816406}

chrome/tools/build/mac/infoplist_strings_util.mm

@@ -266,10 +266,12 @@ int main(int argc, char* const argv[]) {
       NSDictionary<NSString*, NSString*>* infoplist_strings = @{
         @"CFBundleGetInfoString" : get_info,
         @"NSHumanReadableCopyright" : copyright,
+
+        @"NSBluetoothAlwaysUsageDescription" : permission_reason,
+        @"NSBluetoothPeripheralUsageDescription" : permission_reason,
+        @"NSCameraUsageDescription" : permission_reason,
         @"NSLocationUsageDescription" : permission_reason,
         @"NSMicrophoneUsageDescription" : permission_reason,
-        @"NSCameraUsageDescription" : permission_reason,
-        @"NSBluetoothPeripheralUsageDescription" : permission_reason,
       };
       base::scoped_nsobject<NSMutableString> strings_file_contents_string(
           [[NSMutableString alloc] init]);