Fix PCIe1 PHY ref clock voting

[krishnachaitanya-linux]

GCC_PCIE_CLKREF_EN controls a repeater that provides the reference clock
only to the PCIe0 PHY. PCIe1 PHY receives its refclk directly from the CXO
source.

If the PCIe1 driver in HLOS votes for or against GCC_PCIE_CLKREF_EN, it
will inadvertently modify the refclk to PCIe0 as well. Since PCIe0 is
managed by WPSS while PCIe1 is managed in HLOS, there is no mechanism to
coordinate these votes. As a result, HLOS may disable this repeater
during suspend and cut off the PCIe0 PHY refclk while PCIe0 is still
active.

Replace the unused GCC_PCIE_CLKREF_EN clock entry with RPMH_CXO_CLK to
reflect the actual hardware wiring and prevent unintended changes to PCie0 clocks.

CRs-Fixed: 4400706

[qcomlnxci]

Test jobs on 3f690b0

• Job 35356 on kaanapali-qrd
• Job 35352 on lemans-evk
• Job 35359 on qcs615-ride
• Job 35350 on qcs6490-rb3gen2
• Job 35358 on qcs8300-ride
• Job 35355 on qcs9100-ride-r3
• Job 35353 on sm8750-mtp
• Job 35357 on x1e80100-crd

[qcomlnxci]

Test Matrix

Test Case	kaanapali-qrd	lemans-evk	qcs615-ride	qcs6490-rb3gen2	qcs8300-ride	qcs9100-ride-r3	sm8750-mtp	x1e80100-crd
BT_FW_KMD_Service	◻️	❌ Fail	❌ Fail	✅ Pass	✅ Pass	◻️	❌ Fail	◻️
BT_ON_OFF	◻️	✅ Pass	⚠️ skip	✅ Pass	✅ Pass	◻️	⚠️ skip	◻️
BT_SCAN	◻️	✅ Pass	⚠️ skip	✅ Pass	✅ Pass	◻️	⚠️ skip	◻️
CPUFreq_Validation	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
CPU_affinity	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
DSP_AudioPD	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
Ethernet	◻️	⚠️ skip	⚠️ skip	⚠️ skip	⚠️ skip	◻️	⚠️ skip	◻️
Freq_Scaling	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	❌ Fail	◻️
GIC	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
IPA	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
Interrupts	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
OpenCV	◻️	⚠️ skip	⚠️ skip	⚠️ skip	⚠️ skip	◻️	⚠️ skip	◻️
PCIe	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
Probe_Failure_Check	◻️	❌ Fail	❌ Fail	✅ Pass	✅ Pass	◻️	❌ Fail	◻️
RMNET	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
UFS_Validation	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
USBHost	◻️	❌ Fail	✅ Pass	❌ Fail	✅ Pass	◻️	❌ Fail	◻️
WiFi_Firmware_Driver	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	⚠️ skip	◻️
WiFi_OnOff	◻️	✅ Pass	⚠️ skip	✅ Pass	✅ Pass	◻️	⚠️ skip	◻️
cdsp_remoteproc	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	❌ Fail	◻️
hotplug	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
irq	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
kaslr	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
pinctrl	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
qcom_hwrng	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
remoteproc	◻️	✅ Pass	✅ Pass	✅ Pass	❌ Fail	◻️	❌ Fail	◻️
rngtest	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
shmbridge	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
smmu	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
watchdog	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️
wpss_remoteproc	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass	◻️	✅ Pass	◻️