evoker: Update ppc config
evoker: Update ppc config

Modify PPC config of Evoker to both port are syv682x

BUG=b:238571776
BRANCH=none
TEST=zmake build evoker

Signed-off-by: Yu-An Chen <3408ceec56c33f5f3e599c74de364b5b60768bb8@quanta.corp-partner.google.com>
Change-Id: I81b8a93f203f242e867a45d24ae917e5d64d1054
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3874348
Reviewed-by: Sam Hurst <500b4cddcd66abe3fe333e92c4c95d7f41e62e4e@google.com>
Reviewed-by: Bob Moragues <f5049d5b5df4f96d121308a63d9e3c0dfa5ed2dc@chromium.org>
Commit-Queue: Sam Hurst <500b4cddcd66abe3fe333e92c4c95d7f41e62e4e@google.com>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec