treewide: fix incorrect *_BUILD_DEPENDS

Build depends refer to source package names, not binary package names.

In many cases, PKG_BUILD_DEPENDS simply duplicated runtime dependencies of
a source package's binary packages; as the corresponding source packages
are implicitly added as bulid dependencies, PKG_BUILD_DEPENDS can simply be
dropped in these cases. In the other cases, *_BUILD_DEPENDS is fixed to
refer to the correct source package name.

Dependency of mysql-server is adjusted from libncursesw to libncurses
(as libncursesw is a virtual package provided by libncurses), so the build
dependency on ncurses is emitted unconditionally.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>

utils/lcd4linux/Makefile

@@ -120,13 +120,6 @@ PKG_INSTALL:=1
 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(BUILD_VARIANT)/$(PKG_NAME)-$(PKG_VERSION)
 
 PKG_BUILD_DEPENDS:= \
-	libdbus \
-	libgd \
-	libmpdclient \
-	libmysqlclient \
-	libncurses \
-	libnmeap \
-	libsqlite3 \
 	ppp \
 #	libftdi \
 #	libX11 \