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/verify.hpp b/verify.hpp
index 3a77338..59407c6 100644
--- a/verify.hpp
+++ b/verify.hpp
@@ -5,7 +5,7 @@
 #include <memory>
 #include <string>
 
-namespace blobs
+namespace ipmi_flash
 {
 
 class VerificationInterface
@@ -27,4 +27,4 @@
     virtual VerifyCheckResponses checkVerificationState() = 0;
 };
 
-} // namespace blobs
+} // namespace ipmi_flash