com32: Include .init_array section in .ctors in linker script

com32: Include .init_array section in .ctors in linker script

GCC 4.7 now places pointers to functions with the 'constructor' and
'destructor' function attributes in .init_array and .fini_array
sections, respectively, whereas previously they were in the .ctors and
.dtors sections. This change breaks the ctors/dtors code as it only
expects function to be in the .ctors and .dtors sections, meaning the
ctors and dtors functions are never executed.

While a COM32_INIT() macro exists that places functions in the
.init_array section, no function makes use of it, so there should be
no fallout from this change.

Signed-off-by: Matt Fleming <matt.fleming@intel.com>