make: Ignore checking all vendor files

Ignore all files in any vendor directory, not just /include/vendor

dist/tools/ci/changed_files.sh

@@ -8,7 +8,7 @@
 
 changed_files() {
     : ${FILEREGEX:='\.([CcHh]|[ch]pp)$'}
-    : ${EXCLUDE:='^(.+/include/vendor/|dist/tools/coccinelle/include|boards/common/msba2/tools/src)'}
+    : ${EXCLUDE:='^(.+/vendor/|dist/tools/coccinelle/include|boards/common/msba2/tools/src)'}
     : ${DIFFFILTER:='ACMR'}
 
     DIFFFILTER="--diff-filter=${DIFFFILTER}"

dist/tools/whitespacecheck/check.sh

@@ -6,7 +6,7 @@
 # General Public License v2.1. See the file LICENSE in the top level
 # directory for more details.
 
-NOVENDOR=":!*/include/vendor/*"
+NOVENDOR=":!*/vendor/*"
 
 # If no branch but an option is given, unset BRANCH.
 # Otherwise, consume this parameter.