rpi: update bootloader and kernel to latest

package/bcm28xx-bootloader/Makefile

@@ -4,8 +4,8 @@
 include $(ADK_TOPDIR)/rules.mk
 
 PKG_NAME:=		bcm28xx-bootloader
-PKG_VERSION:=		509beaab0e102cf6decf209922669700c9ac5576
-PKG_RELEASE:=		2
+PKG_VERSION:=		ca9116ffd0cea06fdeb876ac7d19790bf2631d8c
+PKG_RELEASE:=		1
 PKG_DESCR:=		bootloader for bcm28xx
 PKG_SECTION:=		base/boot
 PKG_URL:=		https://github.com/raspberrypi/firmware

target/config/Config.in.kernelversion

@@ -224,7 +224,7 @@ config ADK_TARGET_KERNEL_GIT_REPO_NAME
 config ADK_TARGET_KERNEL_GIT
 	string "git version"
 	depends on ADK_TARGET_KERNEL_VERSION_GIT
-	default "72134397d72079a533c8fc742701fdc7f5ae7c5b" if ADK_TARGET_BOARD_BCM28XX
+	default "8327f281c8d5083b13b3a4e6e2a36ee7c3d67913" if ADK_TARGET_BOARD_BCM28XX
 	default "6a2f2e4198eaff63ee75f6085ce9f966c47b4441" if ADK_TARGET_ARCH_LM32
 	default "1d008423ab5fd12459f53342e4d17585ec63cfe4" if ADK_TARGET_SYSTEM_KINETIS_K70
 	default "902739f3353150ac9eb69ad995098f3079d862a3" if ADK_TARGET_SYSTEM_SOLIDRUN_CLEARFOG
@@ -234,7 +234,7 @@ config ADK_TARGET_KERNEL_GIT
 config ADK_TARGET_KERNEL_GIT_VER
 	string "kernel version"
 	depends on ADK_TARGET_KERNEL_VERSION_GIT
-	default "4.9.22" if ADK_TARGET_BOARD_BCM28XX
+	default "4.9.31" if ADK_TARGET_BOARD_BCM28XX
 	default "3.14.79" if ADK_TARGET_SYSTEM_SOLIDRUN_IMX6
 	default "4.4.37" if ADK_TARGET_SYSTEM_BEAGLEBONE_BLACK
 	default "2.6.33" if ADK_TARGET_SYSTEM_KINETIS_K70