ARMV7: OMAP3: Fix preprocessor check for CONFIG_OMAP34XX

CONFIG_OMAP34XX must be checked for existence, not value.

Signed-off-by: Luca Ceresoli <luca.ceresoli@comelit.it>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Albert Aribaud <albert.aribaud@free.fr>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

arch/arm/cpu/armv7/start.S

@@ -115,7 +115,7 @@ reset:
 	orr	r0, r0, #0xd3
 	msr	cpsr,r0
 
-#if (CONFIG_OMAP34XX)
+#if defined(CONFIG_OMAP34XX)
 	/* Copy vectors to mask ROM indirect addr */
 	adr	r0, _start		@ r0 <- current position of code
 	add	r0, r0, #4		@ skip reset vector