FROMLIST: gpio: Add fwnode_gpiod_get() helper

[ziyuezhang-123]

Add fwnode_gpiod_get() as a convenience wrapper around
fwnode_gpiod_get_index() for the common case where only the
first GPIO is required.

This mirrors existing gpiod_get() and devm_gpiod_get() helpers
and avoids open-coding index 0 at call sites.

Suggested-by: Manivannan Sadhasivam mani@kernel.org
Acked-by: Manivannan Sadhasivam mani@kernel.org
Reviewed-by: Linus Walleij linusw@kernel.org
Acked-by: Bartosz Golaszewski bartosz.golaszewski@oss.qualcomm.com
Signed-off-by: Krishna Chaitanya Chundru krishna.chundru@oss.qualcomm.com
Signed-off-by: Ziyue Zhang ziyue.zhang@oss.qualcomm.com

Link: https://lore.kernel.org/all/20260511-wakeirq_support-v10-1-c10af9c9eb8c@oss.qualcomm.com/
CRs-Fixed: 4542930

[qcomlnxci]

Test jobs on a1c92a2

• multimedia Job 190182 on hamoa-iot-evk
• multimedia Job 190179 on lemans-evk
• multimedia Job 190185 on monaco-evk
• multimedia Job on purwa-iot-evk
• multimedia Job 190180 on qcs615-ride
• multimedia Job 190183 on qcs6490-rb3gen2
• multimedia Job 190181 on qcs8300-ride
• multimedia Job 190184 on qcs9100-ride-r3
• multimedia Job on qrb2210-rb1
• multimedia Job on shikra-iqs-evk

[qcomlnxci]

Test Matrix

Test Case	hamoa-iot-evk-multimedia	lemans-evk-multimedia	monaco-evk-multimedia	qcs615-ride-multimedia	qcs6490-rb3gen2-multimedia	qcs8300-ride-multimedia	qcs9100-ride-r3-multimedia
Audio_Card_Registration	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	⚠️ skip	⚠️ skip
BT_FW_KMD_Service	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
BT_ON_OFF	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
BT_SCAN	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
CPUFreq_Validation	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
CPU_affinity	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
DSP_AudioPD	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
Ethernet	⚠️ skip	✅ Pass	⚠️ skip	◻️	⚠️ skip	⚠️ skip	⚠️ skip
Freq_Scaling	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
GIC	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
IPA	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
Interrupts	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
OpenCV	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
PCIe	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
Probe_Failure_Check	❌ Fail	❌ Fail	❌ Fail	◻️	❌ Fail	❌ Fail	❌ Fail
RMNET	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
UFS_Validation	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
USBHost	✅ Pass	✅ Pass	✅ Pass	◻️	❌ Fail	❌ Fail	❌ Fail
WiFi_Firmware_Driver	❌ Fail	✅ Pass	❌ Fail	◻️	✅ Pass	✅ Pass	✅ Pass
WiFi_OnOff	❌ Fail	✅ Pass	❌ Fail	◻️	✅ Pass	✅ Pass	✅ Pass
adsp_remoteproc	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
cdsp_remoteproc	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
gpdsp_remoteproc	⚠️ skip	✅ Pass	✅ Pass	◻️	⚠️ skip	✅ Pass	✅ Pass
hotplug	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
irq	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
kaslr	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
pinctrl	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
qcom_hwrng	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
remoteproc	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
rngtest	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
shmbridge	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
smmu	❌ Fail	❌ Fail	✅ Pass	◻️	✅ Pass	✅ Pass	❌ Fail
watchdog	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass
wpss_remoteproc	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass