configure: fix wrong variable name GLESv1_LIB_DEPS

GLESv1_CM_LIB_DEPS is defined in "configs/autoconf.in",
but configure.ac uses GLESv1_LIB_DEPS.

Signed-off-by: Li Peng <peng.li@linux.intel.com>
diff --git a/configure.ac b/configure.ac
index 9619597..9f30062 100644
--- a/configure.ac
+++ b/configure.ac
@@ -643,7 +643,7 @@
 AC_SUBST([GL_PC_LIB_PRIV])
 AC_SUBST([GL_PC_CFLAGS])
 AC_SUBST([DRI_PC_REQ_PRIV])
-AC_SUBST([GLESv1_LIB_DEPS])
+AC_SUBST([GLESv1_CM_LIB_DEPS])
 AC_SUBST([GLESv1_CM_PC_LIB_PRIV])
 AC_SUBST([GLESv2_LIB_DEPS])
 AC_SUBST([GLESv2_PC_LIB_PRIV])