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_stat_unittest.cpp b/test/firmware_stat_unittest.cpp
index becb3f1..beab6f9 100644
--- a/test/firmware_stat_unittest.cpp
+++ b/test/firmware_stat_unittest.cpp
@@ -7,7 +7,7 @@
 
 #include <gtest/gtest.h>
 
-namespace blobs
+namespace ipmi_flash
 {
 TEST(FirmwareHandlerStatTest, StatOnInactiveBlobIDReturnsTransport)
 {
@@ -31,9 +31,9 @@
     auto handler = FirmwareBlobHandler::CreateFirmwareBlobHandler(
         blobs, data, CreateVerifyMock());
 
-    struct BlobMeta meta;
+    struct blobs::BlobMeta meta;
     EXPECT_TRUE(handler->stat("asdf", &meta));
     EXPECT_EQ(FirmwareBlobHandler::UpdateFlags::ipmi, meta.blobState);
 }
 
-} // namespace blobs
+} // namespace ipmi_flash