package/bitcoin: add host-pkgconf dependency

pkg-config can used to retrieve openssl and libevent dependencies

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

package/bitcoin/bitcoin.mk

@@ -9,7 +9,7 @@ BITCOIN_SITE = $(call github,bitcoin,bitcoin,v$(BITCOIN_VERSION))
 BITCOIN_AUTORECONF = YES
 BITCOIN_LICENSE = MIT
 BITCOIN_LICENSE_FILES = COPYING
-BITCOIN_DEPENDENCIES = boost openssl libevent
+BITCOIN_DEPENDENCIES = host-pkgconf boost openssl libevent
 BITCOIN_CONF_OPTS = \
 	--disable-wallet \
 	--disable-tests \