[ARM] 3963/1: AT91: Update configuration files

A number of configuration file changes.

These are mainly to replace references to ARCH_AT91RM9200 and
ARCH_AT91SAM9261 with the common/generic ARCH_AT91.  That way we don't
need to mention every specific AT91 processor explicitly.

Also adds the configuration option for AT91SAM9260-EK and AT91SAM9261-EK
boards.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/configs/csb637_defconfig b/arch/arm/configs/csb637_defconfig
index df8595a..abf3352 100644
--- a/arch/arm/configs/csb637_defconfig
+++ b/arch/arm/configs/csb637_defconfig
@@ -623,7 +623,7 @@
 # CONFIG_USBPCWATCHDOG is not set
 # CONFIG_NVRAM is not set
 CONFIG_RTC=y
-# CONFIG_AT91_RTC is not set
+# CONFIG_AT91RM9200_RTC is not set
 # CONFIG_DTLK is not set
 # CONFIG_R3964 is not set