rpi-firmware: update to upstream git commit e42a747e8d5c4a.

Also remove kernel7.img and dtb files that should be installed by the
rpi-kernel pkg instead.

srcpkgs/rpi-firmware/template

@@ -1,9 +1,9 @@
 # Template file for 'rpi-firmware'
-_githash="daf5fb3fa196eef6327697ee4994ad8e0cc2679f"
+_githash="e42a747e8d5c4a2fb3e837d0924c7cc39999936a"
 _gitshort="${_githash:0:7}"
 
 pkgname=rpi-firmware
-version=20150202
+version=20150206
 revision=1
 noarch=yes
 wrksrc="firmware-${_githash}"
@@ -12,14 +12,16 @@ maintainer="Juan RP <xtraeme@gmail.com>"
 license="Propietary - see /usr/share/licences/${pkgname}/"
 homepage="https://github.com/raspberrypi/firmware"
 distfiles="https://github.com/raspberrypi/firmware/archive/${_githash}.tar.gz"
-checksum=566dae61fb1aa60aea8dd7cd02cca4d3ead97e1e800bd4e5d54922db302bb9ef
+checksum=a59eb7b1a2238e326d669a4754eec4b5da5e0f9a12e097f2fa64df9c26015fad
 
 conf_files="/boot/cmdline.txt /boot/config.txt"
 provides="libEGL-1.0_1 libGLES-1.0_1"
 replaces="libEGL>=0 libGLES>=0"
 
 do_install() {
-	rm -f boot/kernel.img
+	rm -f boot/*.img
+	rm -rf boot/overlays
+	rm -f boot/*.dtb
 	rm -f boot/COPYING.linux
 
 	vmkdir boot