arm: fix implicit module.h users by adding it to arch/arm as required.

These files will fail to compile if we dont clean them up in advance
and have them include the appropriate headers they need.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index 3e9483b..549468d 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -32,6 +32,7 @@
 #include <linux/spi/pxa2xx_spi.h>
 #include <linux/mtd/sharpsl.h>
 #include <linux/input/matrix_keypad.h>
+#include <linux/module.h>
 #include <video/w100fb.h>
 
 #include <asm/setup.h>