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/0047-haswell-NRI-Program-memory-map.patch

@@ -1,7 +1,7 @@
-From 406e474c7f9f83dc10c7c0fa7cd9765ae822ad4e Mon Sep 17 00:00:00 2001
+From 70d7333e1e0c2b0ce0f2a7e4c4c3ac5c1aca2094 Mon Sep 17 00:00:00 2001
 From: Angel Pons <th3fanbus@gmail.com>
 Date: Sat, 7 May 2022 21:24:50 +0200
-Subject: [PATCH 05/17] haswell NRI: Program memory map
+Subject: [PATCH 47/65] haswell NRI: Program memory map
 
 This is very similar to Sandy/Ivy Bridge, except that there's several
 registers to program in GDXCBAR. One of these GDXCBAR registers has a
@@ -259,5 +259,5 @@ index 1ee0ab2890..0228cf6bb9 100644
  #define PAM0		0x80
  #define PAM1		0x81
 -- 
-2.39.2
+2.39.5