arm64: dts: qcom: lemans-evk: Update SDHC storage support via overlays

[mchunara007]

This series updates the device tree configuration for the LeMans EVK
board to support dynamic selection between SD card and eMMC storage.

The LeMans EVK hardware supports either an SD card or eMMC, but the
interfaces are mutually exclusive as they share the same controller and
resources. Previously, SD card support was hardcoded in the main device
tree, preventing easy switching to eMMC.

This series refactors the SDHC configuration by:

1. Moving the existing SD card configuration into a dedicated overlay.
2. Adding a new overlay to support eMMC.
3. Updating the common SDHC node in the SoC dtsi to include necessary
   resources (clocks, register ranges) required by the eMMC configuration.

This allows the bootloader to apply the appropriate overlay based on the
desired storage medium.

CRs-Fixed: 4470879

[shashim-quic]

No downstream device tree changes for QLI.

[shashim-quic]

No downstream device tree changes for QLI.

in general things to take care,

• Add FROMLIST or other prefix as applicable
• Add Link: tag to the commit log of each commit, if b4 being used, -l option will automatically add it
• Add CRs-Fixed: in PR decription

[qcomlnxci]

Test jobs on 9e3e1ba

• Job 64735 on lemans-evk
• Job 64733 on monaco-evk
• Job 64736 on qcs615-ride
• Job 64734 on qcs6490-rb3gen2
• Job 64738 on qcs8300-ride
• Job 64739 on qcs9100-ride-r3
• Job 64732 on sm8750-mtp

[qcomlnxci]

Test Matrix

Test Case	lemans-evk	monaco-evk	qcs615-ride	qcs6490-rb3gen2	qcs8300-ride	qcs9100-ride-r3	sm8750-mtp
0_qcom-next-ci-premerge-tests	◻️	◻️	◻️	◻️	◻️	◻️	❌ Fail
BT_FW_KMD_Service	❌ Fail	❌ Fail	◻️	✅ Pass	✅ Pass	✅ Pass	❌ Fail
BT_ON_OFF	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass	⚠️ skip
BT_SCAN	✅ Pass	❌ Fail	◻️	✅ 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	◻️
Ethernet	✅ Pass	✅ Pass	◻️	⚠️ skip	✅ Pass	⚠️ skip	⚠️ skip
Freq_Scaling	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass	❌ Fail
GIC	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass
IPA	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass
Interrupts	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass
OpenCV	⚠️ skip	⚠️ skip	◻️	⚠️ skip	⚠️ skip	⚠️ skip	◻️
PCIe	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass
Probe_Failure_Check	❌ Fail	❌ Fail	◻️	❌ Fail	✅ Pass	❌ Fail	❌ Fail
RMNET	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass
UFS_Validation	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass
USBHost	✅ Pass	✅ Pass	◻️	❌ Fail	✅ Pass	✅ Pass	❌ Fail
WiFi_Firmware_Driver	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass	◻️
WiFi_OnOff	✅ Pass	⚠️ skip	◻️	✅ Pass	✅ Pass	✅ Pass	◻️
cdsp_remoteproc	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass	❌ Fail
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	◻️
remoteproc	✅ Pass	❌ Fail	◻️	✅ Pass	❌ Fail	✅ Pass	❌ Fail
rngtest	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass
shmbridge	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass
smmu	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass
watchdog	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass	◻️
wpss_remoteproc	✅ Pass	✅ Pass	◻️	✅ Pass	✅ Pass	✅ Pass	✅ Pass

[sgaud-quic]

Talos devices are down in CI.
Working with infra team to resolve the issue.