tegra: add generic subtarget

Same game as for 853e4dd3062df7cb5704b15d6af6730e3194b571. Add generic
to the filenames.

Signed-off-by: Christian Marangi <[email protected]>

target/linux/tegra/Makefile

@@ -10,6 +10,7 @@ BOARDNAME := NVIDIA Tegra
 FEATURES := audio boot-part display ext4 fpu gpio pci pcie rootfs-part rtc squashfs usb
 CPU_TYPE := cortex-a9
 CPU_SUBTYPE := vfpv3-d16
+SUBTARGETS := generic
 
 KERNEL_PATCHVER := 5.10
 KERNEL_TESTING_PATCHVER := 5.15

target/linux/tegra/generic/target.mk

@@ -0,0 +1 @@
+BOARDNAME:=Generic