API to detect powerVS image

PowerVS systems mandate running of image with specific prefix.
The commit adds API to check for those prefix and confirm if it is a
powerVS image or not.

Change-Id: Ie1cb012d57068d77fbfeeb2cbd6e4e54a542d32f
Signed-off-by: Sunny Srivastava <sunnsr25@in.ibm.com>
diff --git a/vpd-manager/include/utility/vpd_specific_utility.hpp b/vpd-manager/include/utility/vpd_specific_utility.hpp
index fbf713b..a371878 100644
--- a/vpd-manager/include/utility/vpd_specific_utility.hpp
+++ b/vpd-manager/include/utility/vpd_specific_utility.hpp
@@ -783,5 +783,24 @@
         return std::string{};
     }
 }
+
+/**
+ * @brief API to check if the current running image is a powerVS image.
+ *
+ * @return true if it is PowerVS image, false otherwise.
+ */
+inline bool isPowerVsImage()
+{
+    std::string l_imagePrefix = dbusUtility::getImagePrefix();
+
+    if ((l_imagePrefix == constants::powerVsImagePrefix_MY) ||
+        (l_imagePrefix == constants::powerVsImagePrefix_NY) ||
+        (l_imagePrefix == constants::powerVsImagePrefix_MZ) ||
+        (l_imagePrefix == constants::powerVsImagePrefix_NZ))
+    {
+        return true;
+    }
+    return false;
+}
 } // namespace vpdSpecificUtility
 } // namespace vpd