x86/microcode/AMD: Fix load of builtin microcode with randomized memory

We do not need to add the randomization offset when the microcode is
built in.

Reported-and-tested-by: Emanuel Czirai <icanrealizeum@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/20160904093736.GA11939@pd.tnic


Signed-off-by: Thomas Gleixner <tglx@linutronix.de>