omap2+: mux: Fix compile when CONFIG_OMAP_MUX is not selected

Fix compile when CONFIG_OMAP_MUX is not selected

Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/mach-omap2/board-cm-t35.c b/arch/arm/mach-omap2/board-cm-t35.c
index 27bea54..71545c9 100644
--- a/arch/arm/mach-omap2/board-cm-t35.c
+++ b/arch/arm/mach-omap2/board-cm-t35.c
@@ -675,6 +675,7 @@
 			     mt46h32m32lf6_sdrc_params);
 }
 
+#ifdef CONFIG_OMAP_MUX
 static struct omap_board_mux board_mux[] __initdata = {
 	/* nCS and IRQ for CM-T35 ethernet */
 	OMAP3_MUX(GPMC_NCS5, OMAP_MUX_MODE0),
@@ -772,6 +773,7 @@
 
 	{ .reg_offset = OMAP_MUX_TERMINATOR },
 };
+#endif
 
 static struct omap_musb_board_data musb_board_data = {
 	.interface_type		= MUSB_INTERFACE_ULPI,