random32: Include <linux/prandom.h> instead of <linux/random.h>

Substitute the inclusion of <linux/random.h> header with
<linux/prandom.h> to allow the removal of legacy inclusion
of <linux/prandom.h> from <linux/random.h>.

Signed-off-by: Uros Bizjak <[e-mail]>
Cc: Andrew Morton <[e-mail]>
Cc: David S. Miller <[e-mail]>
Cc: Eric Dumazet <[e-mail]>
Cc: Jakub Kicinski <[e-mail]>
Cc: Paolo Abeni <[e-mail]>
Signed-off-by: Jason A. Donenfeld <[e-mail]>

lib/random32.c

···
 #include <linux/percpu.h>
 #include <linux/export.h>
 #include <linux/jiffies.h>
-#include <linux/random.h>
+#include <linux/prandom.h>
 #include <linux/sched.h>
 #include <linux/bitops.h>
 #include <linux/slab.h>