part: eliminate part_get_info_by_name_type()

Since commit 56670d6f ("disk: part: use common api to lookup part
driver") part_get_info_by_name_type() ignores the part_type parameter
used to restrict the partition table type.

omap_mmc_get_part_size() and part_get_info_by_name() are the only
consumers.

omap_mmc_get_part_size() calls with part_type = PART_TYPE_EFI because at
the time of implementation a speed up could be gained by passing the
partition table type. After 5 years experience without this restriction
it looks safe to keep it that way.

part_get_info_by_name() uses PART_TYPE_ALL.

Move the logic of part_get_info_by_name_type() to part_get_info_by_name()
and replace the function in omap_mmc_get_part_size().

Fixes: 56670d6f ("disk: part: use common api to lookup part driver")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>