ARM: omap2plus_defconfig: Add cpufreq to defconfig

Note that we can now use the CONFIG_GENERIC_CPUFREQ_CPU0,
so let's only enable that. Let's use CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND
as suggested by Nishant.

And also let's enable thermal as explained by Nishant Menon:

Many TI SoCs using Highest frequency is not really too nice of an idea for
long periods of time. And not everything is upstream to support things
optimially - example avs class 0, 1.5 ABB consolidation with cpufreq etc..
We definitely need thermal enabled as well for device safety needs.

[tony@atomide.com: updated per Nishant's suggestions]
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/configs/omap2plus_defconfig

@@ -43,6 +43,14 @@ CONFIG_ARM_APPENDED_DTB=y
 CONFIG_ARM_ATAG_DTB_COMPAT=y
 CONFIG_CMDLINE="root=/dev/mmcblk0p2 rootwait console=ttyO2,115200"
 CONFIG_KEXEC=y
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_STAT_DETAILS=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_GENERIC_CPUFREQ_CPU0=y
+# CONFIG_ARM_OMAP2PLUS_CPUFREQ is not set
 CONFIG_CPU_IDLE=y
 CONFIG_BINFMT_MISC=y
 CONFIG_PM_DEBUG=y
@@ -162,7 +170,9 @@ CONFIG_SENSORS_LM75=m
 CONFIG_THERMAL=y
 CONFIG_THERMAL_GOV_FAIR_SHARE=y
 CONFIG_THERMAL_GOV_USER_SPACE=y
+CONFIG_CPU_THERMAL=y
 CONFIG_TI_SOC_THERMAL=y
+CONFIG_TI_THERMAL=y
 CONFIG_OMAP4_THERMAL=y
 CONFIG_OMAP5_THERMAL=y
 CONFIG_DRA752_THERMAL=y