SDMMC: Fix example code

[akira25]

Description of Change

The setPins() function obviously comes from the SD_MMC lib. Not prepending that lib, this code won't compile.

Tests scenarios

Uncomment code section and compile code.

I have tested my Pull Request on Arduino-esp32 core v2.0.16 with ESP32-S3-devkitc1 Board.

Related links

None. I found that recently by using the example.

[CLAassistant]

All committers have signed the CLA.

[github-actions]

Warnings

⚠️

Some issues found for the commit messages in this PR: the commit message "SDMMC: Fix example code": summary looks too short type/action should start with a lowercase letter type/action should be one of [change, ci, docs, feat, fix, refactor, remove, revert, test] Please fix these commit messages - here are some basic tips: follow Conventional Commits style correct format of commit message should be: <type/action>(<scope/component>): <summary>, for example fix(esp32): Fixed startup timeout issue allowed types are: change,ci,docs,feat,fix,refactor,remove,revert,test sufficiently descriptive message summary should be between 20 to 72 characters and start with upper case letter avoid Jira references in commit messages (unavailable/irrelevant for our customers) TIP: Install pre-commit hooks and run this check when committing (uses the Conventional Precommit Linter).

👋 Hello Akira25, we appreciate your contribution to this project!

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Generated by 🚫 dangerJS against 0ce741a

[VojtechBartoska]

Hello @akira25, thanks for the fix, we will review it soon.

[P-R-O-C-H-Y]

LGTM

[github-actions]

Test Results

 56 files   56 suites   4m 50s ⏱️
 21 tests  21 ✅ 0 💤 0 ❌
135 runs  135 ✅ 0 💤 0 ❌

Results for commit 0ce741a.

♻️ This comment has been updated with latest results.

[github-actions]

Memory usage test (comparing PR against master branch)

The table below shows the summary of memory usage change (decrease - increase) in bytes and percentage for each target.

Memory	FLASH [bytes]		FLASH [%]		RAM [bytes]		RAM [%]
Target	DEC	INC	DEC	INC	DEC	INC	DEC	INC
ESP32S3	0	0	0.00	0.00	0	0	0.00	0.00
ESP32	0	0	0.00	0.00	0	0	0.00	0.00

Click to expand the detailed deltas report [usage change in BYTES]

Target	ESP32S3		ESP32
Example	FLASH	RAM	FLASH	RAM
SD_MMC/examples/SDMMC_Test	0	0	0	0