Disable boost exceptions

There should be no case where we're throwing an exception through an
asio descriptor or through the io_context, so having these options
enabled don't do us much good.

Tested:
Code compiles, removes almost 7kB from the bmcweb binary size.

Signed-off-by: Ed Tanous <edtanous@google.com>
Change-Id: I91df03fd0dcb942bdfaa420ad8c0c1f8b0f634cc
diff --git a/meson.build b/meson.build
index f6fb323..8e6e83a 100644
--- a/meson.build
+++ b/meson.build
@@ -232,7 +232,8 @@
   '-DBOOST_ASIO_SEPARATE_COMPILATION',
   '-DBOOST_BEAST_SEPARATE_COMPILATION',
   '-DBOOST_BEAST_USE_STD_STRING_VIEW',
-  '-DJSON_NOEXCEPTION'
+  '-DBOOST_EXCEPTION_DISABLE',
+  '-DJSON_NOEXCEPTION',
 ]),
 language : 'cpp')