Bump coreboot/next and merge coreboot/dell7

coreboot/dell7 is now part of coreboot/next, which in turn
has been updated, to accomodate 3050 micro patchset 18:

https://review.coreboot.org/c/coreboot/+/82053/18

It incorporates my Verb/VBT patches, which are therefore
no longer included separately.

Mate has fixed the USB config; see diff for details.
The configuration of USB ports was wrong, before.

Signed-off-by: Leah Rowe <leah@libreboot.org>

config/coreboot/next/patches/0002-mb-dell-Add-Optiplex-780-MT-x4x-ICH10.patch

@@ -1,7 +1,7 @@
-From 8b951349f2ef77916633c817ad2fc1decd5c0920 Mon Sep 17 00:00:00 2001
+From 53151be243024957386012a099ccf3858f830555 Mon Sep 17 00:00:00 2001
 From: Nicholas Chin <nic.c3.14@gmail.com>
 Date: Mon, 30 Sep 2024 20:44:38 -0400
-Subject: [PATCH 1/3] mb/dell: Add Optiplex 780 MT (x4x/ICH10)
+Subject: [PATCH 2/5] mb/dell: Add Optiplex 780 MT (x4x/ICH10)
 
 Change-Id: Idb45737ce95bfd26e978323c650de7d308b5079c
 Signed-off-by: Nicholas Chin <nic.c3.14@gmail.com>

config/coreboot/next/patches/0003-util-ifdtool-add-nuke-flag-all-0xFF-on-region.patch

@@ -1,7 +1,7 @@
-From 1b230f671ebc6e355a001ac7ffc9b031329de019 Mon Sep 17 00:00:00 2001
+From 50ae904625d6917c68ff8f8f50c280d79842142b Mon Sep 17 00:00:00 2001
 From: Leah Rowe <info@minifree.org>
 Date: Sun, 19 Feb 2023 18:21:43 +0000
-Subject: [PATCH 2/3] util/ifdtool: add --nuke flag (all 0xFF on region)
+Subject: [PATCH 3/5] util/ifdtool: add --nuke flag (all 0xFF on region)
 
 When this option is used, the region's contents are overwritten
 with all ones (0xFF).

config/coreboot/next/patches/0004-Remove-warning-for-coreboot-images-built-without-a-p.patch

@@ -1,7 +1,7 @@
-From ddc7390d7750eb3b29a6d6fe7bf2400121d639b5 Mon Sep 17 00:00:00 2001
+From 895f9a49fb73d000178d8422b9d0c7e0ef71ae03 Mon Sep 17 00:00:00 2001
 From: Nicholas Chin <nic.c3.14@gmail.com>
 Date: Fri, 12 May 2023 19:55:15 -0600
-Subject: [PATCH 3/3] Remove warning for coreboot images built without a
+Subject: [PATCH 4/5] Remove warning for coreboot images built without a
  payload
 
 I added this in upstream to prevent people from accidentally flashing

config/coreboot/next/patches/0005-mb-dell-optiplex_780-Add-USFF-variant.patch

@@ -1,7 +1,7 @@
-From 300f73eae58bfcde26f82814a5e295585b3e3a2a Mon Sep 17 00:00:00 2001
+From 0b26b89118b9bde0a722b9743b9871aa68f8ca38 Mon Sep 17 00:00:00 2001
 From: Nicholas Chin <nic.c3.14@gmail.com>
 Date: Wed, 30 Oct 2024 20:55:25 -0600
-Subject: [PATCH 1/1] mb/dell/optiplex_780: Add USFF variant
+Subject: [PATCH 5/5] mb/dell/optiplex_780: Add USFF variant
 
 Change-Id: I3aa21c743749f4a11a2501f4c121316bd2f1a103
 Signed-off-by: Nicholas Chin <nic.c3.14@gmail.com>

config/coreboot/next/target.cfg

@@ -1,2 +1,2 @@
 tree="next"
-rev="c21bed6de9359111afd5d6ed6e76b1d2116b216c"
+rev="d28fedf4f2cb7e4475a6cdfcab37d64cc60bba1f"