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/plat/rockchip/rk3328/drivers/pmu/pmu.c b/plat/rockchip/rk3328/drivers/pmu/pmu.c
index a17fef9..597db97 100644
--- a/plat/rockchip/rk3328/drivers/pmu/pmu.c
+++ b/plat/rockchip/rk3328/drivers/pmu/pmu.c
@@ -202,7 +202,7 @@
 	dsb();
 	/*
 	 * Maybe the HW needs some times to reset the system,
-	 * so we do not hope the core to excute valid codes.
+	 * so we do not hope the core to execute valid codes.
 	 */
 	while (1)
 		;
@@ -210,7 +210,7 @@
 
 /*
  * For PMIC RK805, its sleep pin is connect with gpio2_d2 from rk3328.
- * If the PMIC is configed for responding the sleep pin to power off it,
+ * If the PMIC is configured for responding the sleep pin to power off it,
  * once the pin is output high,  it will get the pmic power off.
  */
 void __dead2 rockchip_soc_system_off(void)
@@ -462,7 +462,7 @@
 
 /*
  * For PMIC RK805, its sleep pin is connect with gpio2_d2 from rk3328.
- * If the PMIC is configed for responding the sleep pin
+ * If the PMIC is configured for responding the sleep pin
  * to get it into sleep mode,
  * once the pin is output high,  it will get the pmic into sleep mode.
  */
diff --git a/plat/rockchip/rk3328/drivers/soc/soc.h b/plat/rockchip/rk3328/drivers/soc/soc.h
index e8cbc09..e081f71 100644
--- a/plat/rockchip/rk3328/drivers/soc/soc.h
+++ b/plat/rockchip/rk3328/drivers/soc/soc.h
@@ -27,7 +27,7 @@
 	DPLL_ID,
 	CPLL_ID,
 	GPLL_ID,
-	REVERVE,
+	RESERVE,
 	NPLL_ID,
 	MAX_PLL,
 };