ARM: Add missed imxfb include file

This file got missed in the commit of patch 2661/1 thanks to a buggy
script.
Signed-off-by: Russell King <rmk@arm.linux.org.uk>

include/asm-arm/arch-imx/imxfb.h

+/*
+ * This structure describes the machine which we are running on.
+ */
+struct imxfb_mach_info {
+	u_long		pixclock;
+
+	u_short		xres;
+	u_short		yres;
+
+	u_char		bpp;
+	u_char		hsync_len;
+	u_char		left_margin;
+	u_char		right_margin;
+
+	u_char		vsync_len;
+	u_char		upper_margin;
+	u_char		lower_margin;
+	u_char		sync;
+
+	u_int		cmap_greyscale:1,
+			cmap_inverse:1,
+			cmap_static:1,
+			unused:29;
+
+	u_int		pcr;
+	u_int		pwmr;
+	u_int		lscr1;
+
+	u_char * fixed_screen_cpu;
+	dma_addr_t fixed_screen_dma;
+
+	void (*lcd_power)(int);
+	void (*backlight_power)(int);
+};
+void set_imx_fb_info(struct imxfb_mach_info *hard_imx_fb_info);