pcidev: Move pci_dev_find() from internal to canonical place

Also rename to `pcidev_find()` in fitting with pcidev.c helpers.

Tested: ```sudo ./flashrom -p internal -r /tmp/bios
<snip>
Found Programmer flash chip "Opaque flash chip" (16384 kB, Programmer-specific) mapped at physical address 0x0000000000000000.
Reading flash... done.
```

Change-Id: Ie21f87699481a84398ca4450b3f03548f0528191
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
Original-Reviewed-on: https://review.coreboot.org/c/flashrom/+/59280
Original-Reviewed-by: Thomas Heijligen <src@posteo.de>
Reviewed-on: https://review.coreboot.org/c/flashrom-stable/+/72310
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/pcidev.c b/pcidev.c
index 02b39b3..4425c80 100644
--- a/pcidev.c
+++ b/pcidev.c
@@ -179,6 +179,17 @@
 	return NULL;
 }
 
+struct pci_dev *pcidev_find(uint16_t vendor, uint16_t device)
+{
+	struct pci_filter filter;
+
+	pci_filter_init(NULL, &filter);
+	filter.vendor = vendor;
+	filter.device = device;
+
+	return pcidev_scandev(&filter, NULL);
+}
+
 struct pci_dev *pcidev_find_vendorclass(uint16_t vendor, uint16_t devclass)
 {
 	struct pci_dev *temp = NULL;