linux: update to 5.15.89, make it default

mk/linux-ver.mk

@@ -22,10 +22,10 @@ KERNEL_VERSION:=	$(KERNEL_FILE_VER)-$(KERNEL_RELEASE)
 KERNEL_HASH:=		d484eb3d4f88be14b42507a85ad4b0932e92e7a742acbce74e8be007124a6820
 endif
 ifeq ($(ADK_TARGET_LINUX_KERNEL_VERSION_5_15),y)
-KERNEL_FILE_VER:=	5.15.85
+KERNEL_FILE_VER:=	5.15.89
 KERNEL_RELEASE:=	1
 KERNEL_VERSION:=	$(KERNEL_FILE_VER)-$(KERNEL_RELEASE)
-KERNEL_HASH:=		2c0bae29fac98e0a9408914a4551b2971365ac0000351cb255d6bd9aa0849808
+KERNEL_HASH:=		e7311b874e014bb6d37c051319bd6a4a4e3d05a1c32546522deabbfd2d752fe8
 endif
 ifeq ($(ADK_TARGET_LINUX_KERNEL_VERSION_5_10),y)
 KERNEL_FILE_VER:=	5.10.146

target/linux/Config.in.kernelversion

@@ -20,8 +20,7 @@ default ADK_TARGET_LINUX_KERNEL_VERSION_4_9 if ADK_TARGET_ARCH_FRV
 default ADK_TARGET_LINUX_KERNEL_VERSION_4_9 if ADK_TARGET_SYSTEM_ST_STM32F429
 default ADK_TARGET_LINUX_KERNEL_VERSION_4_9 if ADK_TARGET_SYSTEM_ST_STM32F769
 default ADK_TARGET_LINUX_KERNEL_VERSION_4_19 if ADK_TARGET_ARCH_ARC
-default ADK_TARGET_LINUX_KERNEL_VERSION_5_10 if ADK_TARGET_ARCH_PPC64
-default ADK_TARGET_LINUX_KERNEL_VERSION_5_4
+default ADK_TARGET_LINUX_KERNEL_VERSION_5_15
 
 config ADK_TARGET_LINUX_KERNEL_VERSION_GIT
 	bool "git"
@@ -43,7 +42,7 @@ config ADK_TARGET_LINUX_KERNEL_VERSION_6_0
 	depends on !ADK_TARGET_ARCH_METAG
 
 config ADK_TARGET_LINUX_KERNEL_VERSION_5_15
-	bool "5.15.85"
+	bool "5.15.89"
 	depends on !ADK_TARGET_ARCH_AVR32
 	depends on !ADK_TARGET_ARCH_BFIN
 	depends on !ADK_TARGET_ARCH_CRIS