[PATCH] ppc64: Add missing exports

This patch adds a couple of missing symbol exports.  flush_dcache_page is
used by the AGP driver and rtc_lock by the RTC driver.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/ppc64/kernel/time.c b/arch/ppc64/kernel/time.c
index 2348a75..2a532db 100644
--- a/arch/ppc64/kernel/time.c
+++ b/arch/ppc64/kernel/time.c
@@ -91,6 +91,7 @@
 unsigned      tb_to_us;
 unsigned long processor_freq;
 DEFINE_SPINLOCK(rtc_lock);
+EXPORT_SYMBOL_GPL(rtc_lock);
 
 unsigned long tb_to_ns_scale;
 unsigned long tb_to_ns_shift;