andes: Unify naming policy for Andes related source

Signed-off-by: Leo Yu-Chi Liang <ycliang@andestech.com>
diff --git a/drivers/cache/Makefile b/drivers/cache/Makefile
index 78e673d..e1b71e0 100644
--- a/drivers/cache/Makefile
+++ b/drivers/cache/Makefile
@@ -3,6 +3,6 @@
 obj-$(CONFIG_SANDBOX) += sandbox_cache.o
 obj-$(CONFIG_L2X0_CACHE) += cache-l2x0.o
 obj-$(CONFIG_NCORE_CACHE) += cache-ncore.o
-obj-$(CONFIG_V5L2_CACHE) += cache-v5l2.o
+obj-$(CONFIG_ANDES_L2_CACHE) += cache-andes-l2.o
 obj-$(CONFIG_SIFIVE_CCACHE) += cache-sifive-ccache.o
 obj-$(CONFIG_SIFIVE_PL2) += cache-sifive-pl2.o