gitlint: Increase the title length limit to 72

This is particularly useful for commits with long component names. Of
course, it is better to have concise subject that is less than 50 char.

Signed-off-by: Bo Chen <chen.bo@intel.com>

.gitlint

@@ -8,7 +8,7 @@ ignore=all
 
 # default 72
 [title-max-length]
-line-length=50
+line-length=72
 
 # default 80
 [body-max-line-length]

scripts/gitlint/rules.py

@@ -31,6 +31,7 @@ class TitleStartsWithComponent(LineRule):
             'fuzz',
             'github',
             'gitignore',
+            'gitlint',
             'hypervisor',
             'Jenkinsfile',
             'misc',