bcm47xx misses cpu overwrites for the features of the CPUs used in
these SoCs.
Instead of manually checking, it is now known at compile time for some
options and the compiler is able to remove the checks and optimize the
code.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38974 3c298f89-4303-0410-b956-a3cf2f4a3e73