ARM: OMAP: Fix compile for omap1

Based on an earlier patch by Luís Vitório Cargnini, add a dummy define
for OMAP2_CTRL_BASE. Eventually this will get fixed by setting a base
address during boot.
Signed-off-by: Tony Lindgren <tony@atomide.com>

include/asm-arm/arch-omap/omap24xx.h

@@ -101,6 +101,9 @@
 #define OMAP2_VA_IC_BASE	IO_ADDRESS(OMAP24XX_IC_BASE)
 #define OMAP2_CTRL_BASE		OMAP243X_CTRL_BASE
 
+#else
+/* FIXME: These will go away soon */
+#define OMAP2_CTRL_BASE		L4_24XX_BASE
 #endif
 
 /* Control module */