meta-quanta: fix shellcheck issues

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I189baf142cc86d44ebbf615edd3bb0ec1785be8d
diff --git a/meta-quanta/meta-q71l/recipes-phosphor/quanta-powerctrl/files/init_once.sh b/meta-quanta/meta-q71l/recipes-phosphor/quanta-powerctrl/files/init_once.sh
index 205ecaf..08b2880 100755
--- a/meta-quanta/meta-q71l/recipes-phosphor/quanta-powerctrl/files/init_once.sh
+++ b/meta-quanta/meta-q71l/recipes-phosphor/quanta-powerctrl/files/init_once.sh
@@ -7,26 +7,26 @@
     return;
   fi
 
-  echo $1 > /sys/class/gpio/export
-  echo 1 > /sys/class/gpio/gpio$1/active_low
-  echo $2 > /sys/class/gpio/gpio$1/direction
+  echo "$1" > /sys/class/gpio/export
+  echo 1 > "/sys/class/gpio/gpio$1/active_low"
+  echo "$2" > "/sys/class/gpio/gpio$1/direction"
 }
 
 GPIO_BASE=$(cat /sys/devices/platform/ahb/ahb:apb/1e780000.gpio/gpio/*/base)
 
 # FM_BMC_READY_N, GPIO Q4, active low
-set_gpio_active_low $((${GPIO_BASE} + 128 + 4)) high
+set_gpio_active_low $((GPIO_BASE + 128 + 4)) high
 
 # FM_BMC_SSB_SMI_LPC_N, GPIO Q6, active low
-set_gpio_active_low $((${GPIO_BASE} + 128 + 6)) high
+set_gpio_active_low $((GPIO_BASE + 128 + 6)) high
 
 # FM_BMC_SYS_THROTTLE_N, GPIO A3, active low
-set_gpio_active_low $((${GPIO_BASE} + 0 + 3)) high
+set_gpio_active_low $((GPIO_BASE + 0 + 3)) high
 
 # FM_BMC_SSB_SCI_LPC_N, GPIO E4, active low
-set_gpio_active_low $((${GPIO_BASE} + 32 + 4)) high
+set_gpio_active_low $((GPIO_BASE + 32 + 4)) high
 
 # FP_PWR_BTN_PASS_R_N, GPIO D3, active low
-set_gpio_active_low $((${GPIO_BASE} + 24 + 3)) high
+set_gpio_active_low $((GPIO_BASE + 24 + 3)) high
 
 exit 0;
diff --git a/meta-quanta/meta-q71l/recipes-phosphor/quanta-powerctrl/files/poweroff.sh b/meta-quanta/meta-q71l/recipes-phosphor/quanta-powerctrl/files/poweroff.sh
index 8e0dae3..5049f41 100755
--- a/meta-quanta/meta-q71l/recipes-phosphor/quanta-powerctrl/files/poweroff.sh
+++ b/meta-quanta/meta-q71l/recipes-phosphor/quanta-powerctrl/files/poweroff.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 GPIO_BASE=$(cat /sys/devices/platform/ahb/ahb:apb/1e780000.gpio/gpio/*/base)
-GPIO_NUM=$(($GPIO_BASE + 24 + 3))
+GPIO_NUM=$((GPIO_BASE + 24 + 3))
 
 echo 1 > /sys/class/gpio/gpio${GPIO_NUM}/value
 sleep 5
diff --git a/meta-quanta/meta-q71l/recipes-phosphor/quanta-powerctrl/files/poweron.sh b/meta-quanta/meta-q71l/recipes-phosphor/quanta-powerctrl/files/poweron.sh
index f925a33..2ae70de 100755
--- a/meta-quanta/meta-q71l/recipes-phosphor/quanta-powerctrl/files/poweron.sh
+++ b/meta-quanta/meta-q71l/recipes-phosphor/quanta-powerctrl/files/poweron.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 GPIO_BASE=$(cat /sys/devices/platform/ahb/ahb:apb/1e780000.gpio/gpio/*/base)
-GPIO_NUM=$(($GPIO_BASE + 24 + 3))
+GPIO_NUM=$((GPIO_BASE + 24 + 3))
 
 echo 1 > /sys/class/gpio/gpio${GPIO_NUM}/value
 sleep 1