exprtk.wrap: Specify 0.0.3 release

The revision in exprtk.wrap points to a bad revision (possibly due to
the exprtk force push on github), and the revision fails to build with
clang++ as well.

The yocto now points to 0.0.3 release, change the revision here to make
it consistent and it compiles with clang++ now.

Signed-off-by: Lei YU <yulei.sh@bytedance.com>
Change-Id: I52cf9a6df21494933545238cf4c95b5287ce88f7
diff --git a/subprojects/exprtk.wrap b/subprojects/exprtk.wrap
index 4143d1f..338d0cc 100644
--- a/subprojects/exprtk.wrap
+++ b/subprojects/exprtk.wrap
@@ -1,3 +1,3 @@
 [wrap-git]
-revision = 281c2ccc65b8f91c012ea3725ebcef406378a225
+revision = a4b17d543f072d2e3ba564e4bc5c3a0d2b05c338
 url = https://github.com/ArashPartow/exprtk.git