ARM: 6056/1: AT91: at91sam9g10 chip identification changed

A bit in the at91sam9g10 identification number changed between Engineering
Sample and final product. This patch will identify both as being at91sam9g10.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>