platform/x86/amd/pmf: Rename IPU metrics fields to NPU for consistency

Update smu_pmf_metrics_v2 to use NPU terminology instead of IPU. This
aligns the driver with current firmware/hardware naming and fixes the
mismatch. There is no functional change and no impact to the struct layout
and only field names are updated.

Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by:
Link: https://patch.msgid.link/20251120105210.3945710-2-Shyam-sundar.S-k@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

Author: Shyam Sundar S K

drivers/platform/x86/amd/pmf/pmf.h

@@ -243,12 +243,12 @@ struct smu_pmf_metrics_v2 {
 	u16 vclk_freq;			/* MHz */
 	u16 vcn_activity;		/* VCN busy % [0-100] */
 	u16 vpeclk_freq;		/* MHz */
-	u16 ipuclk_freq;		/* MHz */
-	u16 ipu_busy[8];		/* NPU busy % [0-100] */
+	u16 npuclk_freq;		/* MHz */
+	u16 npu_busy[8];		/* NPU busy % [0-100] */
 	u16 dram_reads;			/* MB/sec */
 	u16 dram_writes;		/* MB/sec */
 	u16 core_c0residency[16];	/* C0 residency % [0-100] */
-	u16 ipu_power;			/* mW */
+	u16 npu_power;			/* mW */
 	u32 apu_power;			/* mW */
 	u32 gfx_power;			/* mW */
 	u32 dgpu_power;			/* mW */
@@ -257,9 +257,9 @@ struct smu_pmf_metrics_v2 {
 	u32 filter_alpha_value;		/* time constant [us] */
 	u32 metrics_counter;
 	u16 memclk_freq;		/* MHz */
-	u16 mpipuclk_freq;		/* MHz */
-	u16 ipu_reads;			/* MB/sec */
-	u16 ipu_writes;			/* MB/sec */
+	u16 mpnpuclk_freq;		/* MHz */
+	u16 npu_reads;			/* MB/sec */
+	u16 npu_writes;			/* MB/sec */
 	u32 throttle_residency_prochot;
 	u32 throttle_residency_spl;
 	u32 throttle_residency_fppt;