Botan GOST fails to build if ECC is disabled

If this can't be fixed the disabling ECC should also disable GOST in configure.

make[5]: Entering directory `/home/prox/src/ods/SoftHSMv2/build/src/lib/crypto'
/bin/bash ../../../libtool --tag=CXX --mode=compile g++ -DHAVE_CONFIG_H -I. -I../../../../src/lib/crypto -I../../.. -I../../../../src/lib/crypto/../common -I../../../../src/lib/crypto/../cryptoki_compat -I../../../../src/lib/crypto/../data_mgr -I../../../../src/lib/crypto/.. -I/usr/include/botan-1.10 -g -O2 -Wall -Wextra -MT BotanGOST.lo -MD -MP -MF .deps/BotanGOST.Tpo -c -o BotanGOST.lo ../../../../src/lib/crypto/BotanGOST.cpp
libtool: compile: g++ -DHAVE_CONFIG_H -I. -I../../../../src/lib/crypto -I../../.. -I../../../../src/lib/crypto/../common -I../../../../src/lib/crypto/../cryptoki_compat -I../../../../src/lib/crypto/../data_mgr -I../../../../src/lib/crypto/.. -I/usr/include/botan-1.10 -g -O2 -Wall -Wextra -MT BotanGOST.lo -MD -MP -MF .deps/BotanGOST.Tpo -c ../../../../src/lib/crypto/BotanGOST.cpp -fPIC -DPIC -o .libs/BotanGOST.o
../../../../src/lib/crypto/BotanGOST.cpp: In member function 'virtual bool BotanGOST::generateKeyPair(AsymmetricKeyPair*, AsymmetricParameters, RNG*)':
../../../../src/lib/crypto/BotanGOST.cpp:372:58: error: 'byteString2ECGroup' is not a member of 'BotanUtil'
eckp = new Botan::GOST_3410_PrivateKey(*rng->getRNG(), BotanUtil::byteString2ECGroup(params->getEC()));
^
make[5]: *** [BotanGOST.lo] Error 1