libcamera: Standardize on doxygen \return

Two occasions in the source utilise the Doxygen '\returns' alias for \return.
We use \return everywhere else in the code. Update the two occurences to match.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

src/libcamera/geometry.cpp

@@ -269,7 +269,7 @@ bool operator<(const Size &lhs, const Size &rhs)
 /**
  * \brief Test if a size is contained in the range
  * \param[in] size Size to check
- * \returns True if \a size is contained in the range
+ * \return True if \a size is contained in the range
  */
 bool SizeRange::contains(const Size &size) const
 {