PCI: qcom-ep: Remove redundant edma.nr_irqs initialization

PCI: qcom-ep: Remove redundant edma.nr_irqs initialization

dw_pcie_edma_irq_verify() already parses device tree for either "dma" (if
there is a single IRQ for all DMA channels) or "dmaX" (if there is one IRQ
per DMA channel), and initializes dma.nr_irqs accordingly.

Additionally, the probing of the eDMA driver will fail if neither "dma"
nor "dmaX" is defined in the device tree.

Therefore there is no need for a glue driver to specify edma.nr_irqs, so
remove the redundant edma.nr_irqs initialization.

Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
[bhelgaas: fix typos]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20250908165914.547002-4-cassel@kernel.org