[AVR32] Export clear_page symbol
[AVR32] Export clear_page symbol

Add missing EXPORT_SYMBOL(clear_page), allowing ext3 to be compiled
as a module.

Signed-off-by: Haavard Skinnemoen <de7418319212d7eab32260a76732c1f83e514852@atmel.com>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs