[PARISC] Mention PA-RISC in NS87415 help

Mention PA-RISC in NS87415 help. PA-RISC [BCJ]xxx0 workstations come with
NS87415 integrated for their CD-ROM drives.
Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

drivers/ide/Kconfig

@@ -625,7 +625,7 @@ config BLK_DEV_NS87415
 	tristate "NS87415 chipset support"
 	help
 	  This driver adds detection and support for the NS87415 chip
-	  (used in SPARC64, among others).
+	  (used mainly on SPARC64 and PA-RISC machines).
 
 	  Please read the comments at the top of <file:drivers/ide/pci/ns87415.c>.