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cxl: remove CONFIG_CXL_PMU entry in drivers/cxl/Kconfig

Commit 5d7107c72796 ("perf: CXL Performance Monitoring Unit driver")
added the config entries for CXL_PMU in drivers/cxl/Kconfig and
drivers/perf/Kconfig, so it can be toggled from multiple locations:

[1] Device Drivers
-> PCI support
-> CXL (Compute Expres Link) Devices
-> CXL Performance Monitoring Unit

[2] Device Drivers
-> Performance monitor support
-> CXL Performance Monitoring Unit

This complicates things, and nobody else does this.

I kept the one in drivers/perf/Kconfig because CONFIG_CXL_PMU controls
the compilation of drivers/perf/cxl_pmu.c.

Acked-by: Davidlohr Bueso <dave@stgolabs.net>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

Masahiro Yamada a46aba14 4cece764

-13
-13
drivers/cxl/Kconfig
··· 144 144 If unsure, or if this kernel is meant for production environments, 145 145 say N. 146 146 147 - config CXL_PMU 148 - tristate "CXL Performance Monitoring Unit" 149 - default CXL_BUS 150 - depends on PERF_EVENTS 151 - help 152 - Support performance monitoring as defined in CXL rev 3.0 153 - section 13.2: Performance Monitoring. CXL components may have 154 - one or more CXL Performance Monitoring Units (CPMUs). 155 - 156 - Say 'y/m' to enable a driver that will attach to performance 157 - monitoring units and provide standard perf based interfaces. 158 - 159 - If unsure say 'm'. 160 147 endif