brcm47xx: update board detection patches

Add patches like they are currently in the mainline mips tree and add 
some more pending patches for board detection.

* Now the board name is shown under machine in /proc/cpuinfo.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38308 3c298f89-4303-0410-b956-a3cf2f4a3e73
brcm47xx: update early printk patches

Early printk was disabled because it caused hangs on some devices, the 
old patches were using the CFE console now we use the normal serial 
console, it is at a constant address.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38309 3c298f89-4303-0410-b956-a3cf2f4a3e73
brcm47xx: move and rename nvram gpio patch

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38310 3c298f89-4303-0410-b956-a3cf2f4a3e73