linux-postmarketos-qcom-sdm660: upgrade to 6.9.3 (MR 4897)

Changelog since 6.7:

General:

* Adreno 5xx preemtion is now disabled due to hangs it causes.
  This makes GPU a lot more cooperative on these platforms.
* Fixed absence of zap-shader region which caused devices with
  GPU enabled to freeze the whole system.
* Fixed ath10k Wi-Fi not connecting to 5Ghz networks.
* Incorporated in-kernel pd-mapper patchset, therefore userspace
  pd-mapper daemon is not required.
* Kernel cmdline from bootloader is no longer ignored completely,
  in other words, not hardcoded. You can now modify cmdline in
  deviceinfo file and changes in that file will not be ignored.

Devices:

* Xiaomi Redmi Note 7 (lavender):
  * split device trees into 2 variants by panel type (Tianma & BOE)
  * GPU + panel support for 2 variants
  * Vibrator support
  * Connectivity: modem, Wi-Fi and bluetooth support.

* Other/all devices:
  * update device trees according to upstream USB stack changes
    (related to USB 3 phy support)

device/testing/linux-postmarketos-qcom-sdm660/APKBUILD

@@ -1,9 +1,9 @@
 # Maintainer: Alexey Minnekhanov <alexeymin@postmarketos.org>
-# Kernel config based on: arch/arm64/configs/defconfig
+# Kernel config based on: arch/arm64/configs/sdm660_defconfig
 
 _flavor="postmarketos-qcom-sdm660"
 pkgname=linux-$_flavor
-pkgver=6.7.0
+pkgver=6.9.3
 pkgrel=0
 pkgdesc="Close to mainline linux kernel for Qualcomm Snapdragon 660 SoC"
 arch="aarch64"
@@ -63,6 +63,6 @@ package() {
 }
 
 sha512sums="
-e5c4e0478a5e1e0dbddbfca35bd280bfd1a372d671f21e673b6f6377d1861a59fdde19949f0bd62cf05eb133ad91f6d6e887565e26ad5ace5dee0408a6cd76f4  linux-v6.7.0-sdm660.tar.gz
-8da0fccc8cabcd5c2b8a37a7d870213f5190d84e916ddba9b6b5fd282f82a316a06f0ae2e3295bc3a4f5a2c3877333b5ddccf773b151eb4d389bedeae71226cd  config-postmarketos-qcom-sdm660.aarch64
+ebe70e1364efa99f70e4a3725c42ea94e1c3834ffdec416a5eac8081c02489768d52525dfedaa0f65524d8082b910e647efae30d0795ea683284fcb20d532016  linux-v6.9.3-sdm660.tar.gz
+a297e724072ccc2651e509726bfbd67fc833c205fff6aee0a9d150b6ac5bd5d4615d28586aa8dd14b075d31ea6056213347a46e9b04c53a2fdecabff1f3501bf  config-postmarketos-qcom-sdm660.aarch64
 "