toolchain: add 4.9.x choice for headers

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

toolchain/toolchain-common.in

@@ -228,10 +228,15 @@ config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_8
 	bool
 	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_7
 
+config BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_9
+	bool
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_8
+
 # This order guarantees that the highest version is set, as kconfig
 # stops affecting a value on the first matching default.
 config BR2_TOOLCHAIN_HEADERS_AT_LEAST
 	string
+	default "4.9"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_9
 	default "4.8"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_8
 	default "4.7"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_7
 	default "4.6"  if BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_6

toolchain/toolchain-external/toolchain-external-custom/Config.in.options

@@ -89,6 +89,10 @@ choice
 	    m = ( LINUX_VERSION_CODE >> 8  ) & 0xFF
 	    p = ( LINUX_VERSION_CODE >> 0  ) & 0xFF
 
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9
+	bool "4.9.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_9
+
 config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_8
 	bool "4.8.x"
 	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_8