bcma: move parallel flash support to separated file

This follows the way of handling other flashes and cleans code a bit. As
next task we will want to move flash code to ChipCommon driver as:
1) Flash controllers are accesible using ChipCommon registers
2) This code isn't MIPS specific
This change prepares bcma for that.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c
index c466f75..786be8f 100644
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -350,7 +350,7 @@
 		bcma_register_core(bus, core);
 	}
 
-#ifdef CONFIG_BCMA_DRIVER_MIPS
+#ifdef CONFIG_BCMA_PFLASH
 	if (bus->drv_cc.pflash.present) {
 		err = platform_device_register(&bcma_pflash_dev);
 		if (err)