package/openjdk: needs host-gawk

Fixes:
 - http://autobuild.buildroot.org/results/bb1bb1cf8b58bf28039186866ed01521114acb72

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

package/openjdk/openjdk.mk

@@ -14,6 +14,7 @@ OPENJDK_LICENSE_FILES = LICENSE
 # OpenJDK requires Alsa, cups, and X11 even for a headless build.
 # host-zip is needed for the zip executable.
 OPENJDK_DEPENDENCIES = \
+	host-gawk \
 	host-openjdk-bin \
 	host-pkgconf \
 	host-zip \