[openwrt/openwrt] ipq40xx: add header to SCM cold boot address patch

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/7661e164c049bc59ab54e01f00d1e59f2877b765

commit 7661e164c049bc59ab54e01f00d1e59f2877b765
Author: Robert Marko <robimarko at gmail.com>
AuthorDate: Sun Aug 13 18:23:33 2023 +0200

    ipq40xx: add header to SCM cold boot address patch
    
    Lets add a proper commit title and description to the SCM cold boot
    patch so it applies with a git apply or git-am.
    
    Signed-off-by: Robert Marko <robimarko at gmail.com>
---
 ...2-firmware-qcom-scm-fix-SCM-cold-boot-address.patch} | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/target/linux/ipq40xx/patches-5.15/421-firmware-qcom-scm-cold-boot-address.patch b/target/linux/ipq40xx/patches-5.15/422-firmware-qcom-scm-fix-SCM-cold-boot-address.patch
similarity index 84%
rename from target/linux/ipq40xx/patches-5.15/421-firmware-qcom-scm-cold-boot-address.patch
rename to target/linux/ipq40xx/patches-5.15/422-firmware-qcom-scm-fix-SCM-cold-boot-address.patch
index 13ebb5b000..a31ea69e89 100644
--- a/target/linux/ipq40xx/patches-5.15/421-firmware-qcom-scm-cold-boot-address.patch
+++ b/target/linux/ipq40xx/patches-5.15/422-firmware-qcom-scm-fix-SCM-cold-boot-address.patch
@@ -1,3 +1,20 @@
+From aaa675f07e781e248fcf169ce9a917b48bc2cc9b Mon Sep 17 00:00:00 2001
+From: Brian Norris <computersforpeace at gmail.com>
+Date: Fri, 28 Jul 2023 12:06:23 +0200
+Subject: [PATCH 3/3] firmware: qcom: scm: fix SCM cold boot address
+
+This effectively reverts upstream Linux commit 13e77747800e ("firmware:
+qcom: scm: Use atomic SCM for cold boot"), because Google WiFi boot
+firmwares don't support the atomic variant.
+
+This fixes SMP support for Google WiFi.
+
+Signed-off-by: Brian Norris <computersforpeace at gmail.com>
+---
+ drivers/firmware/qcom_scm-legacy.c | 62 +++++++++++++++++++++++++-----
+ drivers/firmware/qcom_scm.c        | 11 ++++++
+ 2 files changed, 63 insertions(+), 10 deletions(-)
+
 --- a/drivers/firmware/qcom_scm-legacy.c
 +++ b/drivers/firmware/qcom_scm-legacy.c
 @@ -13,6 +13,9 @@