arm:sunxi:pio: add request/release support for PMU pins

Signed-off-by: Alejandro Mery <amery@geeks.cl>
arm:sunxi:script: add sunxi_request_section_gpio()

Signed-off-by: Alejandro Mery <amery@geeks.cl>
misc:sun4i-gpio: remove "ugly" obsolete non-gpiolib gpio driver

Signed-off-by: Alejandro Mery <amery@geeks.cl>
arm:sunxi:devices: scan script.bin detecting sections that define features
arm:sunxi:devices: check if features are to be enabled or not
arm:sunxi:devices: introduce generic pdev constructor

Signed-off-by: Alejandro Mery <amery@geeks.cl>
arm:sunxi:devices: add support for an skip list in the script.bin dev generator

Signed-off-by: Alejandro Mery <amery@geeks.cl>
arm:sunxi:devices: automatically request GPIOs when creating devices from script.bin

Signed-off-by: Alejandro Mery <amery@geeks.cl>
tty:8250_sunxi: remove allwinnerization

Signed-off-by: Alejandro Mery <amery@geeks.cl>