package/fluidsynth: alsa support needs rawmidi and seq

Fixes:
 - http://autobuild.buildroot.org/results/8c8149a7cf87f24271fa6af8a6c81d2dfe241bbe
 - http://autobuild.buildroot.org/results/d7b05205b0bb45d927b5bb462e06fd8c345ebc42

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/fluidsynth/Config.in

@@ -23,6 +23,8 @@ config BR2_PACKAGE_FLUIDSYNTH_ALSA_LIB
 	default y
 	depends on BR2_TOOLCHAIN_HAS_THREADS
 	select BR2_PACKAGE_ALSA_LIB
+	select BR2_PACKAGE_ALSA_LIB_RAWMIDI
+	select BR2_PACKAGE_ALSA_LIB_SEQ
 	help
 	  Enable alsa support.