ARM: msm: Add missing ENDPROC to headsmp.S

Once the ENDPROC is in place, BSYM() in not longer necessary
to get correct pointer to msm_secondary_startup().
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>

arch/arm/mach-msm/headsmp.S

@@ -34,6 +34,7 @@ pen:	ldr	r7, [r6]
 	 * should now contain the SVC stack for this core
 	 */
 	b	secondary_startup
+ENDPROC(msm_secondary_startup)
 
 	.align
 1:	.long	.