mimxrt/hal/flexspi_nor_flash: Fix typo in comment about frequency.

Signed-off-by: robert-hh <robert@hammelrath.com>

Author: robert-hh

ports/mimxrt/hal/flexspi_nor_flash.c

@@ -83,7 +83,7 @@ static ps_div_t div_table_mhz[] = {
     { 18, 8 }, // 60 -> 60 MHz
     { 23, 5 }, // 75 -> 75.13 MHz
     { 18, 6 }, // 80 -> 80 MHz
-    { 17, 5 }, // 100 -> 191 Mhz
+    { 17, 5 }, // 100 -> 101 Mhz
     { 13, 5 }, // 133 -> 132.92 MHz
     { 13, 4 }  // 166  -> 166.15 MHz
 };