update gdb to latest, set to default

target/config/Config.in.gdb.choice

@@ -1,11 +1,16 @@
 choice
 prompt "GNU debugger version"
-default ADK_TOOLCHAIN_GDB_7_9_1
+default ADK_TOOLCHAIN_GDB_7_10
 
 config ADK_TOOLCHAIN_GDB_GIT
 	bool "git"
 	depends on !ADK_TARGET_ARCH_AVR32
 
+config ADK_TOOLCHAIN_GDB_7_10
+	bool "7.10"
+	depends on !ADK_TARGET_ARCH_AVR32
+	depends on !ADK_TARGET_ARCH_H8300
+
 config ADK_TOOLCHAIN_GDB_7_9_1
 	bool "7.9.1"
 	depends on !ADK_TARGET_ARCH_AVR32

toolchain/gdb/Makefile.inc

@@ -2,6 +2,13 @@
 # material, please see the LICENCE file in the top-level directory.
 
 PKG_NAME:=		gdb
+ifeq ($(ADK_TOOLCHAIN_GDB_7_10),y)
+PKG_VERSION:=		7.10
+PKG_RELEASE:=		1
+PKG_HASH:=		7ebdaa44f9786ce0c142da4e36797d2020c55fa091905ac5af1846b5756208a8
+PKG_SITES:=		${MASTER_SITE_GNU:=gdb/}
+DISTFILES:=		${PKG_NAME}-${PKG_VERSION}.tar.xz
+endif
 ifeq ($(ADK_TOOLCHAIN_GDB_7_9_1),y)
 PKG_VERSION:=		7.9.1
 PKG_RELEASE:=		1