set a Sensor's version properly

Bug: 6447433
Change-Id: Iaa5d074a8137d9543ea78c2c6f63a750774b3057
diff --git a/libs/gui/Sensor.cpp b/libs/gui/Sensor.cpp
index f9a2c04..5cc76b4 100644
--- a/libs/gui/Sensor.cpp
+++ b/libs/gui/Sensor.cpp
@@ -40,6 +40,7 @@
 {
     mName = hwSensor->name;
     mVendor = hwSensor->vendor;
+    mVersion = hwSensor->version;
     mHandle = hwSensor->handle;
     mType = hwSensor->type;
     mMinValue = 0;                      // FIXME: minValue
@@ -101,7 +102,7 @@
 {
     return  sizeof(int32_t) + ((mName.length() + 3) & ~3) +
             sizeof(int32_t) + ((mVendor.length() + 3) & ~3) +
-            sizeof(int32_t) * 2 +
+            sizeof(int32_t) * 3 +
             sizeof(float) * 4 +
             sizeof(int32_t);
 }
@@ -140,6 +141,7 @@
     offset += write(buffer, offset, mName);
     offset += write(buffer, offset, int32_t(mVendor.length()));
     offset += write(buffer, offset, mVendor);
+    offset += write(buffer, offset, mVersion);
     offset += write(buffer, offset, mHandle);
     offset += write(buffer, offset, mType);
     offset += write(buffer, offset, mMinValue);
@@ -178,6 +180,7 @@
     offset += read(buffer, offset, &mName, len);
     offset += read(buffer, offset, &len);
     offset += read(buffer, offset, &mVendor, len);
+    offset += read(buffer, offset, &mVersion);
     offset += read(buffer, offset, &mHandle);
     offset += read(buffer, offset, &mType);
     offset += read(buffer, offset, &mMinValue);