ath10k/rtw89: make compile again after LinuxKPI changes

Both drivers are not yet attached to the build so this change is
for people currently trying them out.

In 96ab16ebab the sys/rman.h include
was removed.  In various wireless drivers we prefer to directly use
bus_dma functions rather than io* LinuxKPI once.  In order to cast
the pointer we need sys/rman.h back for our native 'struct resource'
in their pci.c implementations.
Long-term we should consider providing some lkpi_-FreeBSD-specific
wrapper functions to avoid this problem.

MFC after:	3 days

sys/contrib/dev/athk/ath10k/pci.c

@@ -15,6 +15,7 @@
 #include <linux/bitops.h>
 #if defined(__FreeBSD__)
 #include <linux/delay.h>
+#include <sys/rman.h>
 #endif
 
 #include "core.h"

sys/contrib/dev/rtw89/pci.c

@@ -7,6 +7,9 @@
 #endif
 
 #include <linux/pci.h>
+#if defined(__FreeBSD__)
+#include <sys/rman.h>
+#endif
 
 #include "mac.h"
 #include "pci.h"