fix view_count, ytsearch section

[ohnonot]

Just like in issue #27051, and this commit.

Before submitting a pull request make sure you have:

• Searched the bugtracker for similar pull requests
• Read youtube-dl coding conventions and adjusted the code to meet them
• Covered the code with tests (note that PRs without tests will be REJECTED)
• Checked the code with flake8

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The changes are minimal, I just copied a small fix from current youtube-dl to a different section.

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• I am the author of this code and I am willing to release it under Unlicense

What is the purpose of your pull request?

• Bug fix

---

Description of your pull request and other information

When using e.g.

youtube-dl --flat-playlist --dump-json "ytsearch10:some random search"

the view_count is messed up (usually 1/1000th of what it really is), just like described in #27051.
The fix is the same as in this commit, starting on line 3439 of the same file (youtube_dl/extractor/youtube.py).

[ohnonot]

Nudge, bump!

[remitamine]

the code is a lot similar to the one in YoutubeTabIE, the same code should be resued here, instead of having to fix the code in multiple places every time.