dt-bindings: nvmem: qcom,spmi-sdam: update maintainer

Emails to Shyam bounce (reason: 585 5.1.1 <[e-mail]>:
Recipient address rejected: undeliverable address: No such user here.)
so change the maintainer to be me. I work on qcom,spmi-sdam as well
as other PMIC peripheral devices.

Signed-off-by: David Collins <[e-mail]>
Acked-by: Krzysztof Kozlowski <[e-mail]>
Reviewed-by: Bjorn Andersson <[e-mail]>
Signed-off-by: Srinivas Kandagatla <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

Documentation/devicetree/bindings/nvmem/qcom,spmi-sdam.yaml

···
 title: Qualcomm Technologies, Inc. SPMI SDAM
 
 maintainers:
-  - Shyam Kumar Thella <[e-mail]>
+  - David Collins <[e-mail]>
 
 description: |
   The SDAM provides scratch register space for the PMIC clients. This