chipset_enable.c: Add Intel pch7 did=0x1e4{1,2,3} support

Modified to be pch7 over pch6 as per-coreboot and review
comments.

BUG=none
BRANCH=none
TEST=none

Change-Id: Ic69dc024e9af0c43d6b3a8213a5dc5d2f898c447
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/47090
Reviewed-by: Sam McNally <sammc@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
1 file changed