microblaze: dma-mapping: support debug_dma_mapping_error
microblaze: dma-mapping: support debug_dma_mapping_error

Add support for debug_dma_mapping_error() call to avoid warning from
debug_dma_unmap() interface when it checks for mapping error checked
status. Without this patch, device driver failed to check map error
warning is generated.

Signed-off-by: Shuah Khan <f9cffb48774c5c540daacd974d14454046841468@hp.com>
Acked-by: Michal Simek <3a191dd2be46e826fee926d532b136ed65cb5318@monstr.eu>
Signed-off-by: Joerg Roedel <4688a6871ff025801033b3c4b039d55a29f8f937@8bytes.org>

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