powerpc: Don't include asm/prom.h in asm/parport.h

parport.h needs only of_irq.h, no need to go via asm/prom.h
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/ec796ee56cf61f16ba24e62a9d3525d11931538c.1646767214.git.christophe.leroy@csgroup.eu

arch/powerpc/include/asm/parport.h

@@ -11,7 +11,7 @@
 #define _ASM_POWERPC_PARPORT_H
 #ifdef __KERNEL__
 
-#include <asm/prom.h>
+#include <linux/of_irq.h>
 
 static int parport_pc_find_nonpci_ports (int autoirq, int autodma)
 {