CVE-2025-38091: drm/amd/display: check stream id dml21 wrapper to get plane_id

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: check stream id dml21 wrapper to get planeid

[Why & How] Fix a false positive warning which occurs due to lack of correct checks when querying planeid in DML21. This fixes the warning when performing a mode1 reset (cat /sys/kernel/debug/dri/1/amdgpugpurecover):

[ 35.751250] WARNING: CPU: 11 PID: 326 at /tmp/amd.PHpyAl7v/amd/amdgpu/../display/dc/dml2/dml2dcresourcemgmt.c:91 dml2mapdcpipes+0x243d/0x3f40 [amdgpu] [ 35.751434] Modules linked in: amdgpu(OE) amddrmttmhelper(OE) amdttm(OE) amddrmbuddy(OE) amdxcp(OE) amddrmexec(OE) amdsched(OE) amdkcl(OE) drmsuballochelper drmttmhelper ttm drmdisplayhelper cec rccore i2calgobit rfcomm qrtr cmac algifhash algifskcipher afalg bnep amdatl intelraplmsr intelraplcommon sndhdacodechdmi sndhdaintel edacmceamd sndinteldspcfg sndintelsdwacpi sndhdacodec kvmamd sndhdacore sndhwdep sndpcm kvm sndseqmidi sndseqmidievent sndrawmidi crct10difpclmul polyvalclmulni polyvalgeneric btusb ghashclmulniintel sha256ssse3 btrtl sha1ssse3 sndseq btintel aesniintel btbcm btmtk sndseqdevice cryptosimd sunrpc cryptd bluetooth sndtimer ccp binfmtmisc rapl snd i2cpiix4 wmibmof gigabytewmi k10temp i2csmbus soundcore gpioamdpt machid schfqcodel msr parportpc ppdev lp parport efipstore nfnetlink dmisysfs iptables xtables autofs4 hidgeneric usbhid hid crc32pclmul igc ahci xhcipci libahci xhcipcirenesas video wmi [ 35.751501] CPU: 11 UID: 0 PID: 326 Comm: kworker/u64:9 Tainted: G OE 6.11.0-21-generic #21~24.04.1-Ubuntu [ 35.751504] Tainted: [O]=OOTMODULE, [E]=UNSIGNEDMODULE [ 35.751505] Hardware name: Gigabyte Technology Co., Ltd. X670E AORUS PRO X/X670E AORUS PRO X, BIOS F30 05/22/2024 [ 35.751506] Workqueue: amdgpu-reset-dev amdgpudebugfsresetwork [amdgpu] [ 35.751638] RIP: 0010:dml2mapdcpipes+0x243d/0x3f40 [amdgpu] [ 35.751794] Code: 6d 0c 00 00 8b 84 24 88 00 00 00 41 3b 44 9c 20 0f 84 fc 07 00 00 48 83 c3 01 48 83 fb 06 75 b3 4c 8b 64 24 68 4c 8b 6c 24 40 <0f> 0b b8 06 00 00 00 49 8b 94 24 a0 49 00 00 89 c3 83 f8 07 0f 87 [ 35.751796] RSP: 0018:ffffbfa3805d7680 EFLAGS: 00010246 [ 35.751798] RAX: 0000000000010000 RBX: 0000000000000006 RCX: 0000000000000000 [ 35.751799] RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000000 [ 35.751800] RBP: ffffbfa3805d78f0 R08: 0000000000000000 R09: 0000000000000000 [ 35.751801] R10: 0000000000000000 R11: 0000000000000000 R12: ffffbfa383249000 [ 35.751802] R13: ffffa0e68f280000 R14: ffffbfa383249658 R15: 0000000000000000 [ 35.751803] FS: 0000000000000000(0000) GS:ffffa0edbe580000(0000) knlGS:0000000000000000 [ 35.751804] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.751805] CR2: 00005d847ef96c58 CR3: 000000041de3e000 CR4: 0000000000f50ef0 [ 35.751806] PKRU: 55555554 [ 35.751807] Call Trace: [ 35.751810] <TASK> [ 35.751816] ? showregs+0x6c/0x80 [ 35.751820] ? warn+0x88/0x140 [ 35.751822] ? dml2mapdcpipes+0x243d/0x3f40 [amdgpu] [ 35.751964] ? reportbug+0x182/0x1b0 [ 35.751969] ? handlebug+0x6e/0xb0 [ 35.751972] ? excinvalidop+0x18/0x80 [ 35.751974] ? asmexcinvalidop+0x1b/0x20 [ 35.751978] ? dml2mapdcpipes+0x243d/0x3f40 [amdgpu] [ 35.752117] ? mathpow+0x48/0xa0 [amdgpu] [ 35.752256] ? srsoaliasreturnthunk+0x5/0xfbef5 [ 35.752260] ? mathpow+0x48/0xa0 [amdgpu] [ 35.752400] ? srsoaliasreturnthunk+0x5/0xfbef5 [ 35.752403] ? mathpow+0x11/0xa0 [amdgpu] [ 35.752524] ? srsoaliasreturnthunk+0x5/0xfbef5 [ 35.752526] ? coredcn4modeprogramming+0xe4d/0x20d0 [amdgpu] [ 35.752663] ? srsoaliasreturnthunk+0x5/0xfbef5 [ 35.752669] dml21validate+0x3d4/0x980 [amdgpu]

(cherry picked from commit f8ad62c0a93e5dd94243e10f1b742232e4d6411e)