lxc: add gmp libidn gnutls nettle rdepends
lxc: add gmp libidn gnutls nettle rdepends

Fix the following QA warnings:
QA Issue: lxc rdepends on gmp, but it isn't a build dependency,
missing gmp in DEPENDS or PACKAGECONFIG? [build-deps]
QA Issue: lxc rdepends on libidn, but it isn't a build dependency,
missing libidn in DEPENDS or PACKAGECONFIG? [build-deps]
QA Issue: lxc rdepends on gnutls, but it isn't a build dependency,
missing gnutls in DEPENDS or PACKAGECONFIG? [build-deps]
QA Issue: lxc rdepends on nettle, but it isn't a build dependency,
missing nettle in DEPENDS or PACKAGECONFIG? [build-deps]

Signed-off-by: He Zhe <a3bd65281adbcf25519dae3b8193f9759d7ff222@windriver.com>
Signed-off-by: Bruce Ashfield <284cc737d174a260eec2a2a6324a304f84b1ae0f@windriver.com>

lgirdk/meta-virtualization,lgirdk/meta-virtualization,lgirdk/meta-virtualization,lgirdk/meta-virtualization,lgirdk/meta-virtualization