[SPARK-22377][BUILD] Use /usr/sbin/lsof if lsof does not exists in release-build.sh

## What changes were proposed in this pull request?

This PR proposes to use `/usr/sbin/lsof` if `lsof` is missing in the path to fix nightly snapshot jenkins jobs. Please refer apache#19359 (comment):

> Looks like some of the snapshot builds are having lsof issues:
>
> https://amplab.cs.berkeley.edu/jenkins/view/Spark%20Packaging/job/spark-branch-2.1-maven-snapshots/182/console
>
>https://amplab.cs.berkeley.edu/jenkins/view/Spark%20Packaging/job/spark-branch-2.2-maven-snapshots/134/console
>
>spark-build/dev/create-release/release-build.sh: line 344: lsof: command not found
>usage: kill [ -s signal | -p ] [ -a ] pid ...
>kill -l [ signal ]

Up to my knowledge,  the full path of `lsof` is required for non-root user in few OSs.

## How was this patch tested?

Manually tested as below:

```bash
#!/usr/bin/env bash

LSOF=lsof
if ! hash $LSOF 2>/dev/null; then
  echo "a"
  LSOF=/usr/sbin/lsof
fi

$LSOF -P | grep "a"
```

Author: hyukjinkwon <[email protected]>

Closes apache#19695 from HyukjinKwon/SPARK-22377.

Author: HyukjinKwon

dev/create-release/release-build.sh

@@ -130,6 +130,13 @@ else
   fi
 fi
 
+# This is a band-aid fix to avoid the failure of Maven nightly snapshot in some Jenkins
+# machines by explicitly calling /usr/sbin/lsof. Please see SPARK-22377 and the discussion
+# in its pull request.
+LSOF=lsof
+if ! hash $LSOF 2>/dev/null; then
+  LSOF=/usr/sbin/lsof
+fi
 
 if [ -z "$SPARK_PACKAGE_VERSION" ]; then
   SPARK_PACKAGE_VERSION="${SPARK_VERSION}-$(date +%Y_%m_%d_%H_%M)-${git_hash}"
@@ -345,7 +352,7 @@ if [[ "$1" == "publish-snapshot" ]]; then
   #  -DskipTests $SCALA_2_12_PROFILES $PUBLISH_PROFILES clean deploy
 
   # Clean-up Zinc nailgun process
-  lsof -P |grep $ZINC_PORT | grep LISTEN | awk '{ print $2; }' | xargs kill
+  $LSOF -P |grep $ZINC_PORT | grep LISTEN | awk '{ print $2; }' | xargs kill
 
   rm $tmp_settings
   cd ..
@@ -382,7 +389,7 @@ if [[ "$1" == "publish-release" ]]; then
   #  -DskipTests $SCALA_2_12_PROFILES §$PUBLISH_PROFILES clean install
 
   # Clean-up Zinc nailgun process
-  lsof -P |grep $ZINC_PORT | grep LISTEN | awk '{ print $2; }' | xargs kill
+  $LSOF -P |grep $ZINC_PORT | grep LISTEN | awk '{ print $2; }' | xargs kill
 
   #./dev/change-scala-version.sh 2.11