ramips/mt7621: disable the cpufreq driver

It causes a noticeable performance decrease

Signed-off-by: Felix Fietkau <nbd@nbd.name>

target/linux/ramips/mt7621/config-5.15

@@ -3,7 +3,6 @@ CONFIG_ARCH_HIBERNATION_POSSIBLE=y
 CONFIG_ARCH_KEEP_MEMBLOCK=y
 CONFIG_ARCH_MMAP_RND_BITS_MAX=15
 CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=15
-CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED=y
 CONFIG_ARCH_SUSPEND_POSSIBLE=y
 CONFIG_AT803X_PHY=y
 CONFIG_BLK_MQ_PCI=y
@@ -24,8 +23,6 @@ CONFIG_CPU_HAS_DIEI=y
 CONFIG_CPU_HAS_PREFETCH=y
 CONFIG_CPU_HAS_RIXI=y
 CONFIG_CPU_HAS_SYNC=y
-CONFIG_CPU_IDLE=y
-CONFIG_CPU_IDLE_GOV_TEO=y
 CONFIG_CPU_LITTLE_ENDIAN=y
 CONFIG_CPU_MIPS32=y
 # CONFIG_CPU_MIPS32_R1 is not set
@@ -34,7 +31,6 @@ CONFIG_CPU_MIPSR2=y
 CONFIG_CPU_MIPSR2_IRQ_EI=y
 CONFIG_CPU_MIPSR2_IRQ_VI=y
 CONFIG_CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS=y
-CONFIG_CPU_PM=y
 CONFIG_CPU_R4K_CACHE_TLB=y
 CONFIG_CPU_RMAP=y
 CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
@@ -58,11 +54,11 @@ CONFIG_DTB_RT_NONE=y
 CONFIG_DTC=y
 CONFIG_EARLY_PRINTK=y
 CONFIG_FIXED_PHY=y
+CONFIG_FRAME_WARN=1024
 CONFIG_FWNODE_MDIO=y
 CONFIG_FW_LOADER_PAGED_BUF=y
 CONFIG_GENERIC_ATOMIC64=y
 CONFIG_GENERIC_CLOCKEVENTS=y
-CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
 CONFIG_GENERIC_CMOS_UPDATE=y
 CONFIG_GENERIC_CPU_AUTOPROBE=y
 CONFIG_GENERIC_FIND_FIRST_BIT=y
@@ -136,9 +132,7 @@ CONFIG_MIPS_CM=y
 CONFIG_MIPS_CMDLINE_FROM_DTB=y
 CONFIG_MIPS_CPC=y
 CONFIG_MIPS_CPS=y
-CONFIG_MIPS_CPS_CPUIDLE=y
 # CONFIG_MIPS_CPS_NS16550_BOOL is not set
-CONFIG_MIPS_CPS_PM=y
 CONFIG_MIPS_CPU_SCACHE=y
 CONFIG_MIPS_EBPF_JIT=y
 CONFIG_MIPS_GIC=y
@@ -206,12 +200,15 @@ CONFIG_OF_IRQ=y
 CONFIG_OF_KOBJ=y
 CONFIG_OF_MDIO=y
 CONFIG_PADATA=y
+CONFIG_PAGE_POOL=y
+CONFIG_PAGE_POOL_STATS=y
 CONFIG_PCI=y
 CONFIG_PCIE_MT7621=y
 CONFIG_PCI_DISABLE_COMMON_QUIRKS=y
 CONFIG_PCI_DOMAINS=y
 CONFIG_PCI_DOMAINS_GENERIC=y
 CONFIG_PCI_DRIVERS_GENERIC=y
+CONFIG_PCS_MTK_LYNXI=y
 CONFIG_PERF_USE_VMALLOC=y
 CONFIG_PGTABLE_LEVELS=2
 CONFIG_PHYLIB=y