petalinux-features.conf: add faac to LICENSE_FLAGS_WHITELIST
petalinux-features.conf: add faac to LICENSE_FLAGS_WHITELIST

- Added faac to LICENSE_FLAGS_WHITELIST as faac LICENSE_FLAGS
  is set to commercial

Signed-off-by: Varunkumar Allagadapa <bf7d6ed86d8af86b4fccf266c9a286e6497f8ab2@xilinx.com>
Signed-off-by: Manjukumar Matha <4c64a17569570cb9f1048973bce031c402b55312@xilinx.com>

Xilinx/meta-petalinux,Xilinx/meta-petalinux,Xilinx/meta-petalinux,Xilinx/meta-petalinux,Xilinx/meta-petalinux,Xilinx/meta-petalinux