x86/boot/compressed/sev-es: Convert to insn_decode()

Other than simplifying the code there should be no functional changes
resulting from this.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210304174237.31945-7-bp@alien8.de
This commit is contained in:
Borislav Petkov 2020-11-05 17:53:20 +01:00
commit 514ef77607