Patch merged into coreboot/master: de8c53a cpu/allwinner/a10: Refactor API for gating clocks to peripherals

the following patch was just integrated into master:
commit de8c53a3317f114e3252d9aa4574a89204ea43eb
Author: Alexandru Gagniuc 
Date:   Tue Dec 24 16:48:03 2013 -0500

cpu/allwinner/a10: Refactor API for gating clocks to peripherals

Rather than having to track which bit in which register should be
    cleared or set to gate or ungate the clock to a certain peripheral,
    provide a simplified enum which encodes the register and bit. This
    change comes with a function which decodes the enum and gates/ungates
    the clock.

This also removes the register-dependent bitmasks for APB0 and APB1
    gating registers.

Change-Id: Ib3ca16e54eb37eadc3ceb88f4ccc497829ac34bc
    Signed-off-by: Alexandru Gagniuc

See http://review.coreboot.org/4571 for details.

-gerrit