*-user: Fix typo in comment (ulocking -> unlocking)

Signed-off-by: NStefan Weil <sw@weilnetz.de>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

bsd-user/qemu.h

@@ -381,7 +381,7 @@ static inline void *lock_user_string(abi_ulong guest_addr)
     return lock_user(VERIFY_READ, guest_addr, (long)(len + 1), 1);
 }
 
-/* Helper macros for locking/ulocking a target struct.  */
+/* Helper macros for locking/unlocking a target struct.  */
 #define lock_user_struct(type, host_ptr, guest_addr, copy)      \
     (host_ptr = lock_user(type, guest_addr, sizeof(*host_ptr), copy))
 #define unlock_user_struct(host_ptr, guest_addr, copy)          \

linux-user/qemu.h

@@ -438,7 +438,7 @@ static inline void *lock_user_string(abi_ulong guest_addr)
     return lock_user(VERIFY_READ, guest_addr, (long)(len + 1), 1);
 }
 
-/* Helper macros for locking/ulocking a target struct.  */
+/* Helper macros for locking/unlocking a target struct.  */
 #define lock_user_struct(type, host_ptr, guest_addr, copy)	\
     (host_ptr = lock_user(type, guest_addr, sizeof(*host_ptr), copy))
 #define unlock_user_struct(host_ptr, guest_addr, copy)		\