The name conflicts with another macro of the same name on the ARM ixp4xx
platform, leading to build errors.
Neither of the users actually should use a name that generic, but the
other one was here first and the dc driver doesn't actually use it.
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>