misc: add path in checkfile function

helps in readability

Signed-off-by: Sanjay Singh Rawat <sanjay.rawat@linaro.org>
diff --git a/include/functions.sh b/include/functions.sh
index dd716ef..417c725 100644
--- a/include/functions.sh
+++ b/include/functions.sh
@@ -241,7 +241,7 @@
     local file=$1
     local dir=$2
 
-    check "'$file' exists" "test -f" $dir/$file
+    check "'$file' exists in '$dir'" "test -f" $dir/$file
 }
 
 check_cpufreq_files() {