mg-debian-installer-update: Add more modules when creating initrd overlay
The arndale platform has a usb network device. In addition both the SATA and
NIC/USB hardware on this platform requires additional regulator (power), clk
and phy modules, which in turn require i2c support.
Add everything which is needed on this platform.
Sort the list of drivers while here.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>