lib: Kconfig: fix spellos

Fix spelling in lib/ Kconfig files.
(reported by codespell)

Link: https://lkml.kernel.org/r/[email protected]

Cc: Andrew Morton <[email protected]>
Cc: Marco Elver <[email protected]>
Cc: Dmitry Vyukov <[email protected]>
Cc: [email protected]
Reviewed-by: Marco Elver <[email protected]>
Signed-off-by: Randy Dunlap <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>

Author: rddunlap

lib/Kconfig.debug

@@ -1917,7 +1917,7 @@ config FUNCTION_ERROR_INJECTION
 	help
 	  Add fault injections into various functions that are annotated with
 	  ALLOW_ERROR_INJECTION() in the kernel. BPF may also modify the return
-	  value of theses functions. This is useful to test error paths of code.
+	  value of these functions. This is useful to test error paths of code.
 
 	  If unsure, say N
 

lib/Kconfig.kcsan

@@ -194,7 +194,7 @@ config KCSAN_WEAK_MEMORY
 	  Enable support for modeling a subset of weak memory, which allows
 	  detecting a subset of data races due to missing memory barriers.
 
-	  Depends on KCSAN_STRICT, because the options strenghtening certain
+	  Depends on KCSAN_STRICT, because the options strengthening certain
 	  plain accesses by default (depending on !KCSAN_STRICT) reduce the
 	  ability to detect any data races invoving reordered accesses, in
 	  particular reordered writes.