Add a new aml_* prefix to the SCPI related function calls.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: I697812ac1c0df28cbb639a1dc3e838f1107fb739

The efuse driver is hardcoding the GXBB prefix. No need to do that since
the driver is shared between multiple SoCs.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: I97691b0bbd55170d8216d301a3fc04feb8c2af2e

The efuse code is the same between GXL and GXBB. Move the code to common
directory.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: Ie37f21d1907a36292724f1fb645a78041fe4a6b3