bmc: move away from blobs namespace

The blobs namespace is really owned by phosphor-ipmi-blobs.  Move all
phosphor-ipmi-flash objects into ipmi_flash namespace.

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: I51b721ad4f3cdc4cc43846c942967ed2e5f16589
diff --git a/util.cpp b/util.cpp
index 99c47d5..05780b8 100644
--- a/util.cpp
+++ b/util.cpp
@@ -16,7 +16,7 @@
 
 #include "util.hpp"
 
-namespace blobs
+namespace ipmi_flash
 {
 
 const std::string verifyBlobId = "/flash/verify";
@@ -26,4 +26,4 @@
 const std::string staticLayoutBlobId = "/flash/image";
 const std::string ubiTarballBlobId = "/flash/tarball";
 
-} // namespace blobs
+} // namespace ipmi_flash