PSUSensor: Add RTQ6056 supports

Add device RTQ6056 reading support.
Test case: RTQ6056 can be read via PSU sensor service.

Change-Id: If7501d9e5cb95d2177b38fd7f89cafb221f26050
Signed-off-by: Ian Chien <ianchien.wiwynn@gmail.com>
diff --git a/src/PSUSensorMain.cpp b/src/PSUSensorMain.cpp
index ad37956..f300430 100644
--- a/src/PSUSensorMain.cpp
+++ b/src/PSUSensorMain.cpp
@@ -124,6 +124,7 @@
     {"RAA229001", I2CDeviceType{"raa229001", true}},
     {"RAA229004", I2CDeviceType{"raa229004", true}},
     {"RAA229126", I2CDeviceType{"raa229126", true}},
+    {"RTQ6056", I2CDeviceType{"rtq6056", false}},
     {"SBRMI", I2CDeviceType{"sbrmi", true}},
     {"TDA38640", I2CDeviceType{"tda38640", true}},
     {"TPS53679", I2CDeviceType{"tps53679", true}},