MAINTAINERS: Add phosphor-hwmon maintainer

Change-Id: Id62bcfcc23913a6d17670ec3ce620e2f8424932d
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 973a026..786be3b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -183,6 +183,7 @@
 R:  William Li (Nan Li, 李楠) <william.bjlinan@hotmail.com> # TODO: MISSING IRC HANDLE (william?)
 
 @phosphor-hwmon://*
+M:  Patrick Venture <venture@google.com> <venture!>
 R:  Brad Bishop <bradleyb@fuzziesquirrel.com> <radsquirrel!>
 
 @phosphor-inventory-manager://*