MIPS: Lasat: Fix compilation

Header needed for current_cpu_data which expands to smp_processor_id().
However, linux/smp.h can't be included into asm/cpu-info.h due to horrible
circular dependencies, so plug it here.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/include/asm/lasat/lasat.h

@@ -227,6 +227,7 @@ extern void lasat_write_eeprom_info(void);
  * It is used for the bit-banging rtc and eeprom drivers */
 
 #include <linux/delay.h>
+#include <linux/smp.h>
 
 /* calculating with the slowest board with 100 MHz clock */
 #define LASAT_100_DIVIDER 20