Update dell 3050 patch to patch 15 (pwm fix)

Use patchset 15 instead of 14:
config/coreboot/default/patches/0061-WIP-OptiPlex-3050-Micro-port.patch

Rebase the verb patch; patchset 15 modified the Makefile:
config/coreboot/default/patches/0064-dell-optiplex_3050-add-hda_verb.c.patch

We were using patchset 14 for the 3050 micro:
https://review.coreboot.org/c/coreboot/+/82053/14

Now we use patchset 15:
https://review.coreboot.org/c/coreboot/+/82053/15

Without this patch, the fans are always on a low setting, on
the Dell OptiPlex 3050 Micro, even under stress conditions. With
this patch, the fans change speed according to CPU temperature.

I had to rebase my verb patch, because Mate modified the Makefile
to add his sch5555 handler, on the same line where I add hda_verb.

Mate tells me he will merge my verb and vbt patches into a further
patchset later on. For now, I've simply rebased these patches on
top of Mate's newer work; I've told him he can use them in his port.

I'm probably going to now issue a new revision ROM image for
Libreboot 20241008, so that users can get this fix sooner.

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

config/coreboot/default/patches/0058-Haswell-NRI-Implement-fast-boot-path.patch

@@ -1,7 +1,7 @@
-From 50c9d184cc89cd718c1cb95e1a3cabed24e09e1e Mon Sep 17 00:00:00 2001
+From 63e9aa1f998ebd41b4c638fa66bdb1a6272a9e85 Mon Sep 17 00:00:00 2001
 From: Angel Pons <th3fanbus@gmail.com>
 Date: Sat, 13 Apr 2024 01:16:30 +0200
-Subject: [PATCH 16/17] Haswell NRI: Implement fast boot path
+Subject: [PATCH 58/65] Haswell NRI: Implement fast boot path
 
 When the memory configuration hasn't changed, there is no need to do
 full memory training. Instead, boot firmware can use saved training
@@ -718,5 +718,5 @@ index 0000000000..f1f50e3ff8
 +	return RAMINIT_STATUS_SUCCESS;
 +}
 -- 
-2.39.2
+2.39.5