Checking in i2c driver changes for AXM5500 under drivers/i2c. Also, merged in PPC i2c driver changes into drivers/i2c/axxia_i2c.c

Signed-off-by: SangeethaRao <sangeetha.rao@lsi.com>
Display the offset when saving the environment.

Signed-off-by: John Jacques <john.jacques@lsi.com>
Follow the axm2500 default of storing the U-Boot environment
in serial flash.

Signed-off-by: John Jacques <john.jacques@lsi.com>
Always check whether the device being accessed is serial flash.
Serial flash requires 10 bit addressing!

Signed-off-by: John Jacques <john.jacques@lsi.com>
Merge branch 'lsi-v2013.01.01' of github.com:lsigithub/lsi_axxia_uboot into lsi-v2013.01.01
Get the 2500 builds working again after the i2c update...
Signed-off-by: John Jacques <john.jacques@lsi.com>