net: ipa: fix GENERIC_CMD register field masks for IPA v5.0+

Fix the field masks to match the hardware layout documented in
downstream GSI (GSI_V3_0_EE_n_GSI_EE_GENERIC_CMD_*).

Notably this fixes a WARN I was seeing when I tried to send "stop"
to the MPSS remoteproc while IPA was up.

Fixes: faf0678 ("net: ipa: add IPA v5.0 GSI register definitions")
Signed-off-by: Alexander Koskovich <akoskovich@pm.me>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260403-milos-ipa-v1-1-01e9e4e03d3e@fairphone.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

Author: AKoskovich

drivers/net/ipa/reg/gsi_reg-v5.0.c

@@ -156,9 +156,10 @@ REG_FIELDS(EV_CH_CMD, ev_ch_cmd, 0x00025010 + 0x12000 * GSI_EE_AP);
 
 static const u32 reg_generic_cmd_fmask[] = {
 	[GENERIC_OPCODE]				= GENMASK(4, 0),
-	[GENERIC_CHID]					= GENMASK(9, 5),
-	[GENERIC_EE]					= GENMASK(13, 10),
-						/* Bits 14-31 reserved */
+	[GENERIC_CHID]					= GENMASK(12, 5),
+	[GENERIC_EE]					= GENMASK(16, 13),
+						/* Bits 17-23 reserved */
+	[GENERIC_PARAMS]				= GENMASK(31, 24),
 };
 
 REG_FIELDS(GENERIC_CMD, generic_cmd, 0x00025018 + 0x12000 * GSI_EE_AP);