sunxi-cedarx: needs -fPIC

Fixes:
 - http://autobuild.buildroot.org/results/c17062e1558f26c2db837883a0c33ef39dd031a2

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 838b9b6979496d297b1f6c64d9942cc3e9cfcef4)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/sunxi-cedarx/sunxi-cedarx.mk

@@ -19,7 +19,7 @@ SUNXI_CEDARX_BIN_DIR = $(@D)/libcedarv/linux-armel2
 endif
 
 define SUNXI_CEDARX_BUILD_AVHEAP
-	$(TARGET_CC) $(TARGET_CFLAGS) \
+	$(TARGET_CC) $(TARGET_CFLAGS) -fPIC \
 		-c $(SUNXI_CEDARX_BIN_DIR)/adapter/avheap/avheap.c \
 		-o $(SUNXI_CEDARX_BIN_DIR)/adapter/avheap/avheap.o \
 		-I $(SUNXI_CEDARX_BIN_DIR)/adapter/avheap \