[PATCH] ARM: OMAP2: Cleanup various compile warnings.

The current tree is a bit noisy when it comes to OMAP2 builds, here's a
couple of trivial patches to shut up gcc.

arch/arm/mach-omap2/clock.c

@@ -913,7 +913,7 @@ static int omap2_clk_set_parent(struct clk *clk, struct clk *new_parent)
 static int omap2_select_table_rate(struct clk * clk, unsigned long rate)
 {
 	u32 flags, cur_rate, done_rate, bypass = 0;
-	u8 cpu_mask;
+	u8 cpu_mask = 0;
 	struct prcm_config *prcm;
 	unsigned long found_speed = 0;
 

arch/arm/mach-omap2/clock.h

@@ -17,9 +17,6 @@
 #ifndef __ARCH_ARM_MACH_OMAP2_CLOCK_H
 #define __ARCH_ARM_MACH_OMAP2_CLOCK_H
 
-/* FIXME: This will go away when the cpu detection is done for 24xx */
-#define cpu_is_omap2430()	0
-
 static void omap2_sys_clk_recalc(struct clk * clk);
 static void omap2_clksel_recalc(struct clk * clk);
 static void omap2_followparent_recalc(struct clk * clk);

arch/arm/plat-omap/usb.c

@@ -91,6 +91,8 @@ EXPORT_SYMBOL(otg_set_transceiver);
 
 /*-------------------------------------------------------------------------*/
 
+#if defined(CONFIG_ARCH_OMAP_OTG) || defined(CONFIG_ARCH_OMAP15XX)
+
 static u32 __init omap_usb0_init(unsigned nwires, unsigned is_device)
 {
 	u32	syscon1 = 0;
@@ -271,6 +273,8 @@ static u32 __init omap_usb2_init(unsigned nwires, unsigned alt_pingroup)
 	return syscon1 << 24;
 }
 
+#endif
+
 /*-------------------------------------------------------------------------*/
 
 #if	defined(CONFIG_USB_GADGET_OMAP) || \