Staging: rtl8821ae: hal_bt_coexist: fix curly brace placement

Fix coding style issue where the if statement unnecessarily uses curly
braces for one line statements and where the else conditional statement
should follow the closing curly brace '}'. Also, the open curly brace
'{' should be on the same line as the if statement.

Signed-off-by: An Ha <zero579911@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>