fdo#73484: Ensure that we import all tab settings from Excel.

The old code would not import settings of the last sheet if maTabData was
not large enough before the loop begins. Enlarge maTabData ahead of time
to ensure we load all tab settings.

(cherry picked from commit 3e87471b6815a3cad48cab2ef81073bad5453c56)

Conflicts:
	sc/inc/scextopt.hxx

Change-Id: I9093a93ef26ccba9fef06a8929d1d86311f5c55d
Reviewed-on: https://gerrit.libreoffice.org/7383
Reviewed-by: Norbert Thiebaud <nthiebaud@gmail.com>
Reviewed-by: Markus Mohrhard <markus.mohrhard@googlemail.com>
Tested-by: Markus Mohrhard <markus.mohrhard@googlemail.com>