fix(intel): make FPGA memory configurations platform specific

Define FPGA_CONFIG_SIZE and FPGA_CONFIG_ADDR in
platform-specific header. This is due to different
allocated sizes between platforms.

Signed-off-by: Abdul Halim, Muhammad Hadi Asyrafi <muhammad.hadi.asyrafi.abdul.halim@intel.com>
Signed-off-by: Sieu Mun Tang <sieu.mun.tang@intel.com>
Change-Id: Iac4fbf4d4940cdf31834a9d4332f9292870dee76