smbios: add detailed smbios information

smbios: add detailed smbios information

Add detailed SMBIOS information as following:
1. Missing fields in Type #3 and #4
2. Type #7

Add support to dynamic length of contained object handles and
elements.

As SMBIOS is a fundamental feature which is enabled for all
boards, in order to avoid increasing rom size, all detailed SMBIOS
information is under kconfig GENERATE_SMBIOS_TABLE_VERBOSE.
Board maintainers can determine whether to select this feature.

Signed-off-by: Raymond Mao <raymond.mao@linaro.org>