phosphor-power: Add i2c-tools dependency

Needed for i2c tools used by phosphor-regulators

Change-Id: I1ab505f2d49097649bd531278465ea7c445bba5e
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
diff --git a/recipes-phosphor/power/phosphor-power_git.bb b/recipes-phosphor/power/phosphor-power_git.bb
index bb1847e..5ae3d96 100644
--- a/recipes-phosphor/power/phosphor-power_git.bb
+++ b/recipes-phosphor/power/phosphor-power_git.bb
@@ -22,6 +22,7 @@
          sdeventplus \
          nlohmann-json \
          cli11 \
+         i2c-tools \
          "
 
 SEQ_MONITOR_SVC = "pseq-monitor.service"