The power supply for vccio_flash is depends on GPIO0_A4(pin R3 on SoCs),
if GPIO0_A4 input high, vccio_flash = 1.8v
if GPIO0_A4 input low, vccio_flash = 3.3v
Reference to rk_board_init() in arch/arm/mach-rockchip/rk3308/rk3308.c,
it has configure vccio3 io-domain, so here needn't to do more.
BUT lack of vccio3 will make regulator summary hard to read, it's better
to configure vccio3 = <&vccio_flash> after double check its voltage.
Change-Id: I5c17cba5ac184b84800df654544cc3f8fe8c2480
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
77404a6a28