lib/Kconfig.debug: fix three typos in help text

Fix three typos in CONFIG_WARN_ALL_UNSEEDED_RANDOM help text.

Link: http://lkml.kernel.org/r/20180830194505.4778-1-thibaut@sautereau.fr
Signed-off-by: Thibaut Sautereau <thibaut@sautereau.fr>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 6133167..4966c4f 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1277,13 +1277,13 @@
 	  time.  This is really bad from a security perspective, and
 	  so architecture maintainers really need to do what they can
 	  to get the CRNG seeded sooner after the system is booted.
-	  However, since users can not do anything actionble to
+	  However, since users cannot do anything actionable to
 	  address this, by default the kernel will issue only a single
 	  warning for the first use of unseeded randomness.
 
 	  Say Y here if you want to receive warnings for all uses of
 	  unseeded randomness.  This will be of use primarily for
-	  those developers interersted in improving the security of
+	  those developers interested in improving the security of
 	  Linux kernels running on their architecture (or
 	  subarchitecture).