[FormControl] Correct minor typo in text (#11931)

Author: FluentSynergyDW

packages/material-ui/src/FormControl/FormControl.js

@@ -33,7 +33,7 @@ export const styles = theme => ({
 /**
  * Provides context such as filled/focused/error/required for form inputs.
  * Relying on the context provides high flexibilty and ensures that the state always stays
- * consitent across the children of the `FormControl`.
+ * consistent across the children of the `FormControl`.
  * This context is used by the following components:
  *  - FormLabel
  *  - FormHelperText

pages/api/form-control.md

@@ -8,7 +8,7 @@ filename: /packages/material-ui/src/FormControl/FormControl.js
 
 Provides context such as filled/focused/error/required for form inputs.
 Relying on the context provides high flexibilty and ensures that the state always stays
-consitent across the children of the `FormControl`.
+consistent across the children of the `FormControl`.
 This context is used by the following components:
  - FormLabel
  - FormHelperText