We allocate struct ucode_patch here. @size is the size of microcode data
and used for kmemdup() later in this function.

Fixes: 06b8534c ("x86/microcode: Rework microcode loading")
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/7a730dc9-ac17-35c4-fe76-dfc94e5ecd95@ce.jp.nec.comSigned-off-by: Thomas Gleixner <tglx@linutronix.de>