tools: remove static flag from the build

Do not force static link of tools, it breaks build with:
BR2_SHARED_LIBS=y

Patch retrieved from
https://git.buildroot.net/buildroot/tree/package/libseccomp/0001-remove-static.patch and slighly updated to work with 2.3.3

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Acked-by: Tom Hromatka <tom.hromatka@oracle.com>
[PM: also removed the '-static' from the scmp_api_level build]
Signed-off-by: Paul Moore <paul@paul-moore.com>

tools/Makefile.am

@@ -35,10 +35,7 @@ scmp_bpf_sim_SOURCES = scmp_bpf_sim.c bpf.h util.h
 scmp_api_level_SOURCES = scmp_api_level.c
 
 scmp_sys_resolver_LDADD = ../src/libseccomp.la
-scmp_sys_resolver_LDFLAGS = -static
 scmp_arch_detect_LDADD = ../src/libseccomp.la
-scmp_arch_detect_LDFLAGS = -static
 scmp_bpf_disasm_LDADD = util.la
 scmp_bpf_sim_LDADD = util.la
 scmp_api_level_LDADD = ../src/libseccomp.la
-scmp_api_level_LDFLAGS = -static