fix linking problem

When compiling the tpm-tools I get a linking problem:

Making all in cmds
make[3]: Entering directory `/root/tpm-tools/src/cmds'
/bin/sh ../../libtool --tag=CC   --mode=link gcc  -g -O2 -m64 -Wall -Werror -Wreturn-type -Wsign-compare   -o tpm_sealdata tpm_sealdata.o ../../lib/libtpm_tspi.la -ltspi ../../lib/libtpm_unseal.la -ltpm_unseal
libtool: link: gcc -g -O2 -m64 -Wall -Werror -Wreturn-type -Wsign-compare -o .libs/tpm_sealdata tpm_sealdata.o  ../../lib/.libs/libtpm_tspi.a ../../lib/.libs/libtpm_unseal.so -ltspi
/usr/bin/ld: tpm_sealdata.o: undefined reference to symbol 'BIO_pop'
/usr/bin/ld: note: 'BIO_pop' is defined in DSO /lib64/libcrypto.so.10 so try adding it to the linker command line
/lib64/libcrypto.so.10: could not read symbols: Invalid operation
collect2: ld returned 1 exit status

The patch below fixes this problem by also linking with -lcrypto.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>

Author: stefanberger

src/cmds/Makefile.am

@@ -30,7 +30,7 @@ else
 AM_CPPFLAGS	=	-I$(top_srcdir)/include -D_LINUX
 endif
 
-LDADD		=	$(top_builddir)/lib/libtpm_tspi.la -ltspi $(top_builddir)/lib/libtpm_unseal.la -ltpm_unseal
+LDADD		=	$(top_builddir)/lib/libtpm_tspi.la -ltspi $(top_builddir)/lib/libtpm_unseal.la -ltpm_unseal -lcrypto
 
 tpm_sealdata_SOURCES = tpm_sealdata.c
 tpm_unsealdata_SOURCES = tpm_unsealdata.c