um: fix ndelay/udelay defines

Many places in the kernel use 'udelay' as an identifier, and
are broken with the current "#define udelay um_udelay". Fix
this by adding an argument to the macro, and do the same to
'ndelay' as well, just in case.

Fixes: 0bc8fb4dda2b ("um: Implement ndelay/udelay in time-travel mode")
Reported-by: kernel test robot <[e-mail]>
Signed-off-by: Johannes Berg <[e-mail]>
Signed-off-by: Richard Weinberger <[e-mail]>

arch/um/include/asm/delay.h

···
 	ndelay(nsecs);
 }
 #undef ndelay
-#define ndelay um_ndelay
+#define ndelay(n) um_ndelay(n)
 
 static inline void um_udelay(unsigned long usecs)
 {
···
 	udelay(usecs);
 }
 #undef udelay
-#define udelay um_udelay
+#define udelay(n) um_udelay(n)
 #endif /* __UM_DELAY_H */