linux: update to 4.4.20

mk/kernel-ver.mk

@@ -26,10 +26,10 @@ KERNEL_VERSION:=	$(KERNEL_FILE_VER)-$(KERNEL_RELEASE)
 KERNEL_HASH:=		0ce7bd4e582f77d68e0fd6ed5838f65413c2d77f1828b50ca1014a74a42d399b
 endif
 ifeq ($(ADK_TARGET_KERNEL_VERSION_4_4),y)
-KERNEL_FILE_VER:=	4.4.19
+KERNEL_FILE_VER:=	4.4.20
 KERNEL_RELEASE:=	1
 KERNEL_VERSION:=	$(KERNEL_FILE_VER)-$(KERNEL_RELEASE)
-KERNEL_HASH:=		55ad0c6f0b62346f5e4b100f0e01970e8f3a5454f7c8af1e7bba490a3a6ac694
+KERNEL_HASH:=		d231bc70a94139d0100996d44c420cff2e07a7fd95c8c2c4e0bd031aaf56b5aa
 endif
 ifeq ($(ADK_TARGET_KERNEL_VERSION_4_1),y)
 KERNEL_FILE_VER:=	4.1.30

target/config/Config.in.kernelversion

@@ -31,7 +31,7 @@ config ADK_TARGET_KERNEL_VERSION_4_7
 	depends on !ADK_TARGET_ARCH_SPARC
 
 config ADK_TARGET_KERNEL_VERSION_4_4
-	bool "4.4.19"
+	bool "4.4.20"
 	depends on !ADK_TARGET_ARCH_NDS32
 	depends on !ADK_TARGET_ARCH_NIOS2
 	depends on !ADK_TARGET_CPU_MIPS_MIPS32R6