BUG/MINOR: h1: Support headers case adjustment for TCP proxies

On frontend side, "h1-case-adjust-bogus-client" option is now supported in
TCP mode. It is important to be able to adjust the case of response headers
when a connection is routed to an HTTP backend. In this case, the client
connection is upgraded to H1.

On backend side, "h1-case-adjust-bogus-server" option is now also supported
in TCP mode to be able to perform HTTP health-checks with a case adjustment
of the request headers.

This patch should be backported as far as 2.0.
diff --git a/src/proxy.c b/src/proxy.c
index 7a2d400..6fad8ee 100644
--- a/src/proxy.c
+++ b/src/proxy.c
@@ -122,8 +122,8 @@
 	{ "http-pretend-keepalive",       PR_O2_FAKE_KA,   PR_CAP_BE, 0, PR_MODE_HTTP },
 	{ "http-no-delay",                PR_O2_NODELAY,   PR_CAP_FE|PR_CAP_BE, 0, PR_MODE_HTTP },
 
-	{"h1-case-adjust-bogus-client",   PR_O2_H1_ADJ_BUGCLI, PR_CAP_FE, 0, PR_MODE_HTTP },
-	{"h1-case-adjust-bogus-server",   PR_O2_H1_ADJ_BUGSRV, PR_CAP_BE, 0, PR_MODE_HTTP },
+	{"h1-case-adjust-bogus-client",   PR_O2_H1_ADJ_BUGCLI, PR_CAP_FE, 0, 0 },
+	{"h1-case-adjust-bogus-server",   PR_O2_H1_ADJ_BUGSRV, PR_CAP_BE, 0, 0 },
 	{"disable-h2-upgrade",            PR_O2_NO_H2_UPGRADE, PR_CAP_FE, 0, PR_MODE_HTTP },
 	{ NULL, 0, 0, 0 }
 };