m68knommu: enable qspi support when SPI_COLDFIRE_QSPI = m

Enable Coldfire QSPI support when SPI_COLDFIRE_QSPI is built as a module.

This version of the patch combines changes to the config files and  device.c
and uses IF_ENABLED (thanks to Sam Ravnborg for the suggestion).

Signed-off-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
diff --git a/arch/m68k/platform/528x/config.c b/arch/m68k/platform/528x/config.c
index d449292..c5f11ba 100644
--- a/arch/m68k/platform/528x/config.c
+++ b/arch/m68k/platform/528x/config.c
@@ -24,7 +24,7 @@
 
 /***************************************************************************/
 
-#ifdef CONFIG_SPI_COLDFIRE_QSPI
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
 
 static void __init m528x_qspi_init(void)
 {
@@ -32,7 +32,7 @@
 	__raw_writeb(0x07, MCFGPIO_PQSPAR);
 }
 
-#endif /* CONFIG_SPI_COLDFIRE_QSPI */
+#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
 
 /***************************************************************************/
 
@@ -98,7 +98,7 @@
 	mach_sched_init = hw_timer_init;
 	m528x_uarts_init();
 	m528x_fec_init();
-#ifdef CONFIG_SPI_COLDFIRE_QSPI
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
 	m528x_qspi_init();
 #endif
 }