[vulkan] move library flags to a config block

This change moves the shared library build flags into a new config block.
This is required for linux builds as the default config specifies the
--build-id parameter, which is only overridable within a config block,
and is required to be the sha1 format by the driver.

Test: ran vulkan_intel_tests_linux
Change-Id: Ia83610666f68c14f44c3ac3fedf81bdcfa05d95a
1 file changed