samples: fix path to sanitycheck script

Change-Id: Ic8fae0617faa6495a30bee09b5457a080924172c
Signed-off-by: Anas Nashif <[email protected]>

Author: nashif

samples/bluetooth/README

@@ -33,11 +33,11 @@ $ make qemu
 There is smoke test application in tests directory which gets run in sanity
 check script:
 
-$ scripts/sanity_chk/sanitycheck [-P <platform>]
+$ scripts/sanitycheck [-P <platform>]
 
 To only run Bluetooth tests use the -t bluetooth switch:
 
-$ scripts/sanity_chk/sanitycheck -t bluetooth
+$ scripts/sanitycheck -t bluetooth
 
 = Summary of available applications =