doc: replace @return by Return:

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/arch/x86/include/asm/arch-apollolake/lpc.h b/arch/x86/include/asm/arch-apollolake/lpc.h
index 977b7ec..51d478f 100644
--- a/arch/x86/include/asm/arch-apollolake/lpc.h
+++ b/arch/x86/include/asm/arch-apollolake/lpc.h
@@ -67,7 +67,7 @@
  *
  * @base: Base I/O address (e.g. 0x800)
  * @size: Size of window (e.g. 0x100)
- * @return 0 if OK, -ENOSPC if there are no more windows available, -EALREADY
+ * Return: 0 if OK, -ENOSPC if there are no more windows available, -EALREADY
  *	if already set up
  */
 int lpc_open_pmio_window(uint base, uint size);