refactor(renesas): remove mbedtls_common makefile inclusion

Renesas platform does not support crypto, but mbedtls_common.mk
is still included in its makefile. Therefore, this inclusion
was removed to avoid un-necessary compilation of mbedTLS source.

Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
Change-Id: Ib6978255e39a7f5d5013952841930ae68b12c318
diff --git a/plat/renesas/common/common.mk b/plat/renesas/common/common.mk
index aef0ad1..26a5798 100644
--- a/plat/renesas/common/common.mk
+++ b/plat/renesas/common/common.mk
@@ -140,5 +140,4 @@
 			drivers/arm/cci/cci.c
 
 include lib/xlat_tables_v2/xlat_tables.mk
-include drivers/auth/mbedtls/mbedtls_crypto.mk
 PLAT_BL_COMMON_SOURCES	+=	${XLAT_TABLES_LIB_SRCS}