intel/skylake/pcr.c: error out on invalid size in pcr read/write

The read and write routines take a number of bytes to write, which
should be 1,2, or 4.  We now return an error if an invalid size
is specified.

Change-Id: I93344bc0837c3715fc7660503f405c8878eb711c
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/12936
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>

0 files changed, 0 insertions, 0 deletions