[ARM] S3C: Fix PWM build on S3C6400

The pwm-clock.c needs <mach/map.h> which is included
via other means on S3C24XX systems, so ensure it is
explicitly included.

Remove the includes of regs-clock.h and regs-gpio.h as
these are not needed by the build.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

arch/arm/plat-s3c/pwm-clock.c

@@ -19,11 +19,9 @@
 #include <linux/io.h>
 
 #include <mach/hardware.h>
+#include <mach/map.h>
 #include <asm/irq.h>
 
-#include <mach/regs-clock.h>
-#include <mach/regs-gpio.h>
-
 #include <plat/clock.h>
 #include <plat/cpu.h>