Get the instruction set that the libraries of secondary Abi is supported.

The secondary Abi is for the apps which support the mulitArch feature.
In presence of a native bridge the instruction set supported by
secondary Abi might be different than the one secondary Abi used.

Change-Id: I318fb21e45c34de6cf1bf8ff63519aaa2b1e2520
Signed-off-by: jgu21 <jinghui.gu@intel.com>