imx: remove unneeded include of mach/hardware.h

This include isn't needed and hurts when defining static inline
functions in mach/hardware.h (or files included by mach/hardware.h).

The reason is that the consumers of mach/uncompress.h are compiled using
-Dstatic= so the code for all inline function is included in e.g.
arch/arm/boot/compressed/misc.o.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Jörg Knobloch <knobloch@incostartec.com>
Cc: Alan Carvalho de Assis <acassis@gmail.com>
Cc: Daniel Mack <daniel@caiaq.de>
Cc: Dmitriy Taychenachev <dimichxp@gmail.com>

arch/arm/plat-mxc/include/mach/uncompress.h

 /*
  *  arch/arm/plat-mxc/include/mach/uncompress.h
  *
- *
- *
  *  Copyright (C) 1999 ARM Limited
  *  Copyright (C) Shane Nay (shane@minirl.com)
  *
@@ -25,7 +23,6 @@
 
 #define __MXC_BOOT_UNCOMPRESS
 
-#include <mach/hardware.h>
 #include <asm/mach-types.h>
 
 static unsigned long uart_base;