ARM: OMAP3: Fix warnings in clock34xx.h

Fix warnings

arch/arm/mach-omap2/clock34xx.h:178: warning: initialization makes pointer from integer without a cast
arch/arm/mach-omap2/clock34xx.h:204: warning: initialization makes pointer from integer without a cast
arch/arm/mach-omap2/clock34xx.h:229: warning: initialization makes pointer from integer without a cast

Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>