at91rm9200dk: fix warning: 'dk_mmc_data' defined but not used
at91rm9200dk: fix warning: 'dk_mmc_data' defined but not used

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <9fc55922e47e21cb004bb878f69efa10ab51cf02@jcrosoft.com>
Signed-off-by: Andrew Victor <ba324ca7b1c77fc20bb970d5aff6eea9377918a5@maxim.org.za>

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