msm8610: Correct the PWM header file to be used.

Include the right PWM header file for MSM8610

Change-Id: I42a1338461b196b28afaed9ebeedb4fe2385f9ab
diff --git a/target/msm8610/target_display.c b/target/msm8610/target_display.c
index 9a48270..af2ebeb 100755
--- a/target/msm8610/target_display.c
+++ b/target/msm8610/target_display.c
@@ -37,7 +37,7 @@
 #include <board.h>
 #include <platform/gpio.h>
 #include <platform/iomap.h>
-#include <platform/pm_pwm.h>
+#include <pm_pwm.h>
 #include <target/display.h>
 
 #include "include/panel.h"