fapi2: Fix template call sites for GCC 7
fapi2: Fix template call sites for GCC 7

The following errors stop hostboot from building with modern GCC:

src/import/hwpf/fapi2/include/buffer.H:710:23: error: invalid
operands of types ‘<unresolved overloaded function type>’ and
‘fapi2::bufferTraits<long unsigned int, unsigned int>::bits_type
{aka unsigned int}’ to binary ‘operator<’
             out.insert<TS, L, SS>(iv_data);
             ~~~~~~~~~~^~~

src/import/hwpf/fapi2/include/buffer.H: In member function
‘fapi2::buffer<T, TT>& fapi2::buffer<T, TT>::flipBit()’:
src/import/hwpf/fapi2/include/buffer.H:316:49: error: expected
primary-expression before ‘)’ token
             iv_data ^= buffer<T>().setBit<B, C>();
                                                 ^
In both cases the call site needs to be prepended with the keyword
'template'. Otherwise the name is assumed to be a non-template (as per
C++ 14.2/4).

Change-Id: I925c35d51787c4f4f232372f0e1299ec2a5cab42
Signed-off-by: Joel Stanley <d9a0f810d819da6019f51403bef90829e7fca7f8@au1.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/49760
Tested-by: FSP CI Jenkins <aa9e4d9ac7cd25905e9c0dd36d4150516e73dd86@us.ibm.com>
Tested-by: Jenkins Server <8e3f934e4c44875bc48d33da3ea13d93ba9a233f@us.ibm.com>
Tested-by: HWSV CI <ae069ce3805842f4ed79e0ef7868baadb5df0a6b@us.ibm.com>
Tested-by: PPE CI <dc75934ba5befb9221434e67a247b93aec46b36b@us.ibm.com>
Tested-by: Hostboot CI <52521565bd8ea18a2b112942dce4f4220a97c2c8@us.ibm.com>
Reviewed-by: Daniel M. Crowell <912029ca9254ac7b5854e56910561d682e1fa2d0@us.ibm.com>
Reviewed-by: ANDRE A. MARIN <65293609e29ccd0ac899f5f3f03aea95be1b215f@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <ab93eca12e43608f33daa16a67357cd7b7e867ab@us.ibm.com>

open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot