gallium/os: minor whitespace fixes in os_time.h

Trivial.

src/gallium/auxiliary/os/os_time.h

@@ -61,7 +61,8 @@ os_time_get_nano(void);
  * Get the current time in microseconds from an unknown base.
  */
 static INLINE int64_t
-os_time_get(void) {
+os_time_get(void)
+{
    return os_time_get_nano() / 1000;
 }
 
@@ -87,7 +88,7 @@ os_time_timeout(int64_t start,
                 int64_t end,
                 int64_t curr)
 {
-   if(start <= end)
+   if (start <= end)
       return !(start <= curr && curr < end);
    else
       return !((start <= curr) || (curr < end));