Documentation/acpi/enumeration.txt fix a typo

Corrected the word configation to configuration.
Signed-off-by: NStefan Huber <steffhip@gmail.com>
Signed-off-by: NMatthias Schid <aircrach115@gmail.com>
Signed-off-by: NSimon Puels <simon.puels@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Documentation/acpi/enumeration.txt

@@ -207,7 +207,7 @@ passing those. One idea is to return this in _DSM method like:
 			Return (Local0)
 		}
 
-Then the at25 SPI driver can get this configation by calling _DSM on its
+Then the at25 SPI driver can get this configuration by calling _DSM on its
 ACPI handle like:
 
 	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };