treewide: Capitalize submenus

Fixed a typo in tcpreplay.

Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>

utils/fontconfig/Makefile

@@ -23,7 +23,7 @@ include $(INCLUDE_DIR)/package.mk
 define Package/fontconfig
   SECTION:=xorg-util
   CATEGORY:=Xorg
-  SUBMENU:=font-utils
+  SUBMENU:=Font-Utils
   TITLE:=fontconfig
   DEPENDS:=+libpthread +libexpat +libfreetype
   URL:=http://fontconfig.org/

utils/mariadb/Makefile

@@ -235,7 +235,7 @@ define Package/mariadb/Default
   SECTION:=utils
   CATEGORY:=Utilities
   URL:=https://mariadb.org/
-  SUBMENU:=database
+  SUBMENU:=Database
 endef
 
 define Package/mariadb-client

utils/rrdtool1/Makefile

@@ -61,7 +61,7 @@ define Package/rrdcgi1
 $(call Package/rrdtool1/Default)
   SECTION:=utils
   CATEGORY:=Utilities
-  SUBMENU:=database
+  SUBMENU:=Database
   DEPENDS:=+librrd1
   TITLE+= CGI graphing tool
 endef
@@ -76,7 +76,7 @@ define Package/rrdtool1
 $(call Package/rrdtool1/Default)
   SECTION:=utils
   CATEGORY:=Utilities
-  SUBMENU:=database
+  SUBMENU:=Database
   DEPENDS:=+librrd1
   TITLE+= management tools
 endef