Add asm-sparc{,64}/percpu.h

include/asm-sparc/percpu.h

+#ifndef __ARCH_SPARC_PERCPU__
+#define __ARCH_SPARC_PERCPU__
+
+#include <asm-generic/percpu.h>
+
+#endif /* __ARCH_SPARC_PERCPU__ */

include/asm-sparc64/percpu.h

+#ifndef __ARCH_SPARC64_PERCPU__
+#define __ARCH_SPARC64_PERCPU__
+
+#include <asm-generic/percpu.h>
+
+#endif /* __ARCH_SPARC64_PERCPU__ */