powerpc/fsl-booke: Fix compile warning

arch/powerpc/mm/fsl_booke_mmu.c: In function 'adjust_total_lowmem':
arch/powerpc/mm/fsl_booke_mmu.c:221: warning: format '%ld' expects type 'long int', but argument 3 has type 'phys_addr_t'
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/mm/fsl_booke_mmu.c

@@ -218,7 +218,7 @@ adjust_total_lowmem(void)
 		p += sprintf(p, "0/");
 	p[-1] = '\0';
 
-	pr_info("Memory CAM mapping: %s Mb, residual: %ldMb\n", buf,
-	        (total_lowmem - __max_low_memory) >> 20);
+	pr_info("Memory CAM mapping: %s Mb, residual: %dMb\n", buf,
+	        (unsigned int)((total_lowmem - __max_low_memory) >> 20));
 	__initial_memory_limit_addr = memstart_addr + __max_low_memory;
 }