sdl: Fix host variant dependencies

The host variant of sdl inherited the dependencies and conf opt from
sdl which could lead to some trouble.

For example:
  If you were to build host-sdl and had alsa-lib enabled in your
  packages list, it would try to build host-alsa-lib which does not
  exists.

This patch define basic dependencies and conf opt for the host variant.

Reported-by: Eric Limpens <limpens@gmail.com>
Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/sdl/sdl.mk

@@ -21,6 +21,7 @@ SDL_PRE_CONFIGURE_HOOKS += SDL_RUN_AUTOGEN
 HOST_SDL_PRE_CONFIGURE_HOOKS += SDL_RUN_AUTOGEN
 
 SDL_DEPENDENCIES += host-automake host-autoconf host-libtool
+HOST_SDL_DEPENDENCIES += host-automake host-autoconf host-libtool
 
 ifeq ($(BR2_PACKAGE_SDL_FBCON),y)
 SDL_CONF_OPT += --enable-video-fbcon=yes
@@ -70,6 +71,12 @@ SDL_CONF_OPT += --enable-pulseaudio=no \
 		--disable-nasm \
 		--disable-video-ps3
 
+HOST_SDL_CONF_OPT += --enable-pulseaudio=no \
+		--disable-arts \
+		--disable-esd \
+		--disable-nasm \
+		--disable-video-ps3
+
 SDL_CONFIG_SCRIPTS = sdl-config
 
 # Remove the -Wl,-rpath option.