Since commit 70ce076fa6dff60, the actual rom source dirs
are subdirs of vbootrom/ submodule, not in top-level of it.

Fixes: 70ce076fa6dff60 "roms: Update vbootrom to 1287b6e"
Fixes: 269b7effd90 ("pc-bios: Add NPCM8XX vBootrom")

Cc: qemu-stable@nongnu.org
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20250727215511.807880-1-mjt@tls.msk.ru>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
(cherry picked from commit 653a75a9d7f957c4ba9387d1a54bccfdce49cb9c)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

diff --git a/roms/Makefile b/roms/Makefile
index beff58d9d5..6af68a922f 100644
--- a/roms/Makefile
+++ b/roms/Makefile
@@ -193,12 +193,12 @@ qboot:
 	cp qboot/build/bios.bin ../pc-bios/qboot.rom
 
 npcm7xx_bootrom:
-	$(MAKE) -C vbootrom CROSS_COMPILE=$(arm_cross_prefix)
-	cp vbootrom/npcm7xx_bootrom.bin ../pc-bios/npcm7xx_bootrom.bin
+	$(MAKE) -C vbootrom/npcm7xx CROSS_COMPILE=$(arm_cross_prefix)
+	cp vbootrom/npcm7xx/npcm7xx_bootrom.bin ../pc-bios/npcm7xx_bootrom.bin
 
 npcm8xx_bootrom:
-	$(MAKE) -C vbootrom CROSS_COMPILE=$(aarch64_cross_prefix)
-	cp vbootrom/npcm8xx_bootrom.bin ../pc-bios/npcm8xx_bootrom.bin
+	$(MAKE) -C vbootrom/npcm8xx CROSS_COMPILE=$(aarch64_cross_prefix)
+	cp vbootrom/npcm8xx/npcm8xx_bootrom.bin ../pc-bios/npcm8xx_bootrom.bin
 
 hppa-firmware:
 	$(MAKE) -C seabios-hppa parisc
-- 
2.47.2