OvmfPkg/Tcg2ConfigPei: trivial coding style updates

OvmfPkg/Tcg2ConfigPei: trivial coding style updates

- the @file comment block should match between INF and main C file

- rewrap / refill columns to 79 characters

- insert space before opening paren

- prefix and suffix //-style comment block with empty // lines

- fix indentation of arguments in multi-line function call

- general tab spacing (indent step) is 2 in edk2, unlike QEMU's 4

No functional changes.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>