treewide: Fix typo in Kconfig

Correct spelling typo in Kconfig.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/fmc/Kconfig b/drivers/fmc/Kconfig
index c01cf45..3a75f42 100644
--- a/drivers/fmc/Kconfig
+++ b/drivers/fmc/Kconfig
@@ -46,6 +46,6 @@
 	  This driver matches every mezzanine device and allows user
 	  space to read and write registers using a char device. It
 	  can be used to write user-space drivers, or just get
-	  aquainted with a mezzanine before writing its specific driver.
+	  acquainted with a mezzanine before writing its specific driver.
 
 endif # FMC