mm: make generic_access_phys available for modules

In the next commit this function will be used in the uio subsystem

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

mm/memory.c

diff --git a/mm/memory.c b/mm/memory.c
index 1ce2e2a..8d9255b 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4066,6 +4066,7 @@
 
 	return len;
 }
+EXPORT_SYMBOL_GPL(generic_access_phys);
 #endif
 
 /*