sdbusplus: avoid deprecated phosphor::Timer

sdbusplus had an older type named `phosphor::Timer` which was
recently renamed to `sdbusplus::Timer`.  Update the code to use
the new type alias.

Change-Id: I694f0624eae2cdbb071ab97fe019cd5684615541
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/include/manufacturingcommands.hpp b/include/manufacturingcommands.hpp
index 07e0a5a..f8eae09 100644
--- a/include/manufacturingcommands.hpp
+++ b/include/manufacturingcommands.hpp
@@ -329,7 +329,7 @@
 
     bool revertFanPWM = false;
     bool revertLedCallback = false;
-    phosphor::Timer revertTimer;
+    sdbusplus::Timer revertTimer;
     int mtmTestBeepFd = -1;
 };