of/sparc: convert various prom_* functions to use phandle

Rather than passing around ints everywhere, use the
phandle type where appropriate for the various functions
that talk to the PROM.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

drivers/sbus/char/jsflash.c

@@ -459,7 +459,7 @@ static int jsflash_init(void)
 {
 	int rc;
 	struct jsflash *jsf;
-	int node;
+	phandle node;
 	char banner[128];
 	struct linux_prom_registers reg0;