[Keyboard] Fix keyboard matrix scan rate with F072 (#10226)

* fix matrix scan rate

* Update trinityxttkl.c

* Update rev2.c

keyboards/aeboards/ext65/rev2/rev2.c

@@ -1,5 +1,8 @@
 #include "rev2.h"
 
+// Tested and verified working on ext65rev2
+void matrix_io_delay(void) { __asm__ volatile("nop\nnop\nnop\n"); }
+
 #ifdef OLED_DRIVER_ENABLE
 void board_init(void) {
   SYSCFG->CFGR1 |= SYSCFG_CFGR1_I2C1_DMA_RMP;

keyboards/xelus/trinityxttkl/trinityxttkl.c

@@ -1 +1,4 @@
 #include "trinityxttkl.h"
+
+// Tested and verified working on Trinity XT TKL
+void matrix_io_delay(void) { __asm__ volatile("nop\nnop\nnop\n"); }