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/test/firmware_delete_unittest.cpp b/test/firmware_delete_unittest.cpp
index de67a15..755dc30 100644
--- a/test/firmware_delete_unittest.cpp
+++ b/test/firmware_delete_unittest.cpp
@@ -9,7 +9,7 @@
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
-namespace blobs
+namespace ipmi_flash
 {
 using ::testing::Eq;
 using ::testing::Return;
@@ -36,7 +36,7 @@
     EXPECT_CALL(imageMock, open(StrEq(hashBlobId))).WillOnce(Return(true));
 
     EXPECT_TRUE(handler->open(
-        0, OpenFlags::write | FirmwareBlobHandler::UpdateFlags::ipmi,
+        0, blobs::OpenFlags::write | FirmwareBlobHandler::UpdateFlags::ipmi,
         hashBlobId));
 
     /* The active hash blob_id was added. */
@@ -63,4 +63,4 @@
                             activeHashBlobId));
 }
 
-} // namespace blobs
+} // namespace ipmi_flash