[PATCH v2 4/5] binman: Convert FIT entry type to a subclass of Section entry type

[Simon Glass]

The binman FIT entry type shares some code with the Section entry type.
This shared code is bound to grow, since FIT entries are conceptually a
variation of Section entries.

Make FIT entry type a subclass of Section entry type, simplifying it a
bit and providing us the features that Section implements. Also fix the
subentry alignment test which now attempts to write symbols to a
nonexistent SPL ELF test file by creating it first.

Signed-off-by: Alper Nebi Yasak <alpernebiyasak at gmail.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
---

Changes in v2:
- Add tag: "Reviewed-by: Simon Glass <sjg at chromium.org>"

 tools/binman/etype/fit.py | 70 +++++++++++----------------------------
 tools/binman/ftest.py     |  1 +
 2 files changed, 20 insertions(+), 51 deletions(-)

Applied to u-boot-dm, thanks!