Update hardware_keyboard_guidelines.md to Fix Typos (#24671)

Corrected a typo in the phrase "iOS device need lessthan 100" to "iOS devices need less than 100."
This was to improve clarity and professionalism of the doc.

docs/hardware_keyboard_guidelines.md

@@ -111,7 +111,7 @@ The `post_config.h` file can be used for additional post-processing, depending o
     #define USB_MAX_POWER_CONSUMPTION 400
   #else
     // fix iPhone and iPad power adapter issue
-    // iOS device need lessthan 100
+    // iOS devices need less than 100
     #define USB_MAX_POWER_CONSUMPTION 100
   #endif