fix build error for bf527-ezkit_defconfig for old silicon
fix build error for bf527-ezkit_defconfig for old silicon

Signed-off-by: Aaron Wu <Aaron.wu@analog.com>

fix build error for bf527-ezkit_defconfig for old silicon

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs