southbridge/amd agesa & cimx spelling fixes

Trivial fixes, but the editor highlights them, and it's easy to go
through a bunch of files while I'm otherwise idle.

Change-Id: I5d2d4ba098d2a95f7643f000f4b48b3349a8e6cf
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/7839
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
diff --git a/src/southbridge/amd/agesa/hudson/lpc.c b/src/southbridge/amd/agesa/hudson/lpc.c
index 129a615..836966e 100644
--- a/src/southbridge/amd/agesa/hudson/lpc.c
+++ b/src/southbridge/amd/agesa/hudson/lpc.c
@@ -126,7 +126,7 @@
 /**
  * @brief Enable resources for children devices
  *
- * @param dev the device whos children's resources are to be enabled
+ * @param dev the device whose children's resources are to be enabled
  *
  */
 static void hudson_lpc_enable_childrens_resources(device_t dev)