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/window_mapper_mock.hpp b/test/window_mapper_mock.hpp
index c8a75c6..8fc41fa 100644
--- a/test/window_mapper_mock.hpp
+++ b/test/window_mapper_mock.hpp
@@ -8,7 +8,7 @@
 
 #include <gmock/gmock.h>
 
-namespace blobs
+namespace ipmi_flash
 {
 
 class HardwareInterfaceMock : public HardwareMapperInterface
@@ -23,4 +23,4 @@
     MOCK_METHOD1(copyFrom, std::vector<std::uint8_t>(std::uint32_t));
 };
 
-} // namespace blobs
+} // namespace ipmi_flash