cpplint: Ignore some false-positives for variable-sized arrays

All of these places use a template argument (usually indirectly) for array
sizes, so they are _not_ variable sized. It just so happens that cpplint is
unable to figure that out on its own. For this reason, mark them explicitly, and
let cpplint ignore these false positives.

Signed-off-by: Gergely Nagy <algernon@keyboard.io>

src/kaleidoscope/device/virtual/Virtual.h

@@ -86,10 +86,10 @@ class VirtualKeyScanner
 
   bool read_matrix_enabled_;
 
-  KeyState keystates_[matrix_rows * matrix_columns];
-  KeyState keystates_prev_[matrix_rows * matrix_columns];
+  KeyState keystates_[matrix_rows * matrix_columns]; // NOLINT(runtime/arrays)
+  KeyState keystates_prev_[matrix_rows * matrix_columns]; // NOLINT(runtime/arrays)
 
-  bool mask_[matrix_rows * matrix_columns];
+  bool mask_[matrix_rows * matrix_columns]; // NOLINT(runtime/arrays)
 };
 
 class VirtualLEDDriver
@@ -108,7 +108,7 @@ class VirtualLEDDriver
 
  private:
 
-  cRGB led_states_[led_count];
+  cRGB led_states_[led_count]; // NOLINT(runtime/arrays)
 };
 
 // This overrides only the drivers and keeps the driver props of

src/kaleidoscope/driver/led/WS2812.h

@@ -80,7 +80,7 @@ class WS2812 {
   }
 
  private:
-  Color leds_[ledCount];
+  Color leds_[ledCount]; // NOLINT(runtime/arrays)
   uint8_t pinmask_;
   bool modified_ = false;
 

src/kaleidoscope/plugin/Qukeys/KeyAddrEventQueue.h

@@ -45,7 +45,7 @@ class KeyAddrEventQueue {
  private:
   uint8_t    length_{0};
   KeyAddr    addrs_[_capacity];
-  _Timestamp timestamps_[_capacity];
+  _Timestamp timestamps_[_capacity]; // NOLINT(runtime/arrays)
   _Bitfield  release_event_bits_;
 
  public: