lib/Kconfig.debug: fix a typo "capabilitiy" -> "capability"

s/capabilitiy/capability
Signed-off-by: NQiujun Huang <hqjagain@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/1585818594-27373-1-git-send-email-hqjagain@gmail.comSigned-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

lib/Kconfig.debug

@@ -1655,7 +1655,7 @@ config FAILSLAB
 	  Provide fault-injection capability for kmalloc.
 
 config FAIL_PAGE_ALLOC
-	bool "Fault-injection capabilitiy for alloc_pages()"
+	bool "Fault-injection capability for alloc_pages()"
 	depends on FAULT_INJECTION
 	help
 	  Provide fault-injection capability for alloc_pages().