fix(tree): correct some typos

found using codespell (https://github.com/codespell-project/codespell).

Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Change-Id: I1bfa797e3460adddeefa916bb68e22beddaf6373
diff --git a/drivers/renesas/common/emmc/emmc_hal.h b/drivers/renesas/common/emmc/emmc_hal.h
index 0a85517..4e6942f 100644
--- a/drivers/renesas/common/emmc/emmc_hal.h
+++ b/drivers/renesas/common/emmc/emmc_hal.h
@@ -512,7 +512,7 @@
 	/* maximum block count which can be transferred at once */
 	uint32_t max_block_count;
 
-	/* maximum clock frequence in Hz supported by HW */
+	/* maximum clock frequency in Hz supported by HW */
 	uint32_t max_clock_freq;
 
 	/* maximum data bus width supported by HW */