[ARM] pxa: removing dead XSCALE_CACHE_ERRATA
[ARM] pxa: removing dead XSCALE_CACHE_ERRATA

XSCALE_CACHE_ERRATA doesn't exist in Kconfig, therefore removing all
references for it from the source code.

Signed-off-by: Christoph Egger <7ce732631e2797712a4ad392e9cf50b0fe9ffb4c@cs.fau.de>
Cc: Nicolas Pitre <d659c10e27d52b00987b65e85d99bce5480adcae@fluxnic.net>
Signed-off-by: Eric Miao <60e376623d7bcedd53f4c51cbb2c060fb40a4887@gmail.com>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs