freedreno/a5xx: initial support

Signed-off-by: Rob Clark <robdclark@gmail.com>
diff --git a/configure.ac b/configure.ac
index e7e5628..f62bc61 100644
--- a/configure.ac
+++ b/configure.ac
@@ -74,7 +74,7 @@
 LIBDRM_INTEL_REQUIRED=2.4.61
 LIBDRM_NVVIEUX_REQUIRED=2.4.66
 LIBDRM_NOUVEAU_REQUIRED=2.4.66
-LIBDRM_FREEDRENO_REQUIRED=2.4.68
+LIBDRM_FREEDRENO_REQUIRED=2.4.74
 LIBDRM_VC4_REQUIRED=2.4.69
 DRI2PROTO_REQUIRED=2.6
 DRI3PROTO_REQUIRED=1.0