remove duplicate ARM_ARCH_TIMER select
more cpuclk work for rk3066 and rk3288
implement the fraction-divider using the new generic fractional_divider clock
spi/rockchip: fixup incorrect dma direction setting

Signed-off-by: Addy Ke <addy.ke@rock-chips.com>
Merge branch 'devel/upstream' into devel/workbench
ARM: rockchip: refresh defconfigs

run "make *_defconfig && make savedefconfig"
ARM: rockchip: enable driver for act8846
ARM: rockchip: do not limit USB peripherals by whitelist

many Rockchip based products have external Standard-A receptacle(s)
which is intended to be used as normal USB host.
ARM: radxarock_defconfig: update USB support

dwc2 is working without phy support. disable phy related configs.
add some common USB peripheral drivers for testing.

XXX: this should be renamed to rk3188_defconfig