ARC: Enable PERF_EVENTS in nSIM driven platforms

Now when we have properly working performance counters in nSIM
even with interrupt support (fix should be a part of upcoming
nSIM engineering build 2016.12-005) we may enable perf support
by default for all platforms that use nSIM for ARC cores simulation.

Note 1: PCT node was missing for some reason in nsimosci.dts
        while all other nSIM-related .dts files already had
        PCT node for quite some time, so adding it now.

Note 2: All defconfigs were regenerated with "make savedefconfig"
        which led to some clean-ups in nsimosci_hs_smp_defconfig:
        CONFIG_FRAMEBUFFER_CONSOLE=y was removed because it is
        automatically selected now by DRM.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

arch/arc/boot/dts/axc001.dtsi

@@ -71,7 +71,7 @@
 			reg-io-width = <4>;
 		};
 
-		arcpmu0: pmu {
+		arcpct0: pct {
 			compatible = "snps,arc700-pct";
 		};
 	};

arch/arc/boot/dts/nsim_700.dts

@@ -69,7 +69,7 @@
 			};
 		};
 
-		arcpmu0: pmu {
+		arcpct0: pct {
 			compatible = "snps,arc700-pct";
 		};
 	};

arch/arc/boot/dts/nsimosci.dts

@@ -83,5 +83,9 @@
 			reg = <0xf0003000 0x44>;
 			interrupts = <7>;
 		};
+
+		arcpct0: pct {
+			compatible = "snps,arc700-pct";
+		};
 	};
 };

arch/arc/configs/nsim_700_defconfig

@@ -14,6 +14,7 @@ CONFIG_BLK_DEV_INITRD=y
 CONFIG_INITRAMFS_SOURCE="../arc_initramfs/"
 CONFIG_KALLSYMS_ALL=y
 CONFIG_EMBEDDED=y
+CONFIG_PERF_EVENTS=y
 # CONFIG_SLUB_DEBUG is not set
 # CONFIG_COMPAT_BRK is not set
 CONFIG_KPROBES=y

arch/arc/configs/nsim_hs_defconfig

@@ -14,6 +14,7 @@ CONFIG_BLK_DEV_INITRD=y
 CONFIG_INITRAMFS_SOURCE="../../arc_initramfs_hs/"
 CONFIG_KALLSYMS_ALL=y
 CONFIG_EMBEDDED=y
+CONFIG_PERF_EVENTS=y
 # CONFIG_SLUB_DEBUG is not set
 # CONFIG_COMPAT_BRK is not set
 CONFIG_KPROBES=y

arch/arc/configs/nsim_hs_smp_defconfig

@@ -12,6 +12,7 @@ CONFIG_BLK_DEV_INITRD=y
 CONFIG_INITRAMFS_SOURCE="../arc_initramfs_hs/"
 CONFIG_KALLSYMS_ALL=y
 CONFIG_EMBEDDED=y
+CONFIG_PERF_EVENTS=y
 # CONFIG_SLUB_DEBUG is not set
 # CONFIG_COMPAT_BRK is not set
 CONFIG_KPROBES=y

arch/arc/configs/nsimosci_defconfig

@@ -14,6 +14,7 @@ CONFIG_BLK_DEV_INITRD=y
 CONFIG_INITRAMFS_SOURCE="../arc_initramfs/"
 CONFIG_KALLSYMS_ALL=y
 CONFIG_EMBEDDED=y
+CONFIG_PERF_EVENTS=y
 # CONFIG_SLUB_DEBUG is not set
 # CONFIG_COMPAT_BRK is not set
 CONFIG_KPROBES=y

arch/arc/configs/nsimosci_hs_defconfig

@@ -14,6 +14,7 @@ CONFIG_BLK_DEV_INITRD=y
 CONFIG_INITRAMFS_SOURCE="../arc_initramfs_hs/"
 CONFIG_KALLSYMS_ALL=y
 CONFIG_EMBEDDED=y
+CONFIG_PERF_EVENTS=y
 # CONFIG_SLUB_DEBUG is not set
 # CONFIG_COMPAT_BRK is not set
 CONFIG_KPROBES=y

arch/arc/configs/nsimosci_hs_smp_defconfig

@@ -10,6 +10,7 @@ CONFIG_IKCONFIG_PROC=y
 # CONFIG_PID_NS is not set
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_INITRAMFS_SOURCE="../arc_initramfs_hs/"
+CONFIG_PERF_EVENTS=y
 # CONFIG_COMPAT_BRK is not set
 CONFIG_KPROBES=y
 CONFIG_MODULES=y
@@ -34,7 +35,6 @@ CONFIG_INET=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 # CONFIG_IPV6 is not set
 # CONFIG_WIRELESS is not set
 CONFIG_DEVTMPFS=y
@@ -72,7 +72,6 @@ CONFIG_SERIAL_OF_PLATFORM=y
 # CONFIG_HWMON is not set
 CONFIG_DRM=y
 CONFIG_DRM_ARCPGU=y
-CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
 # CONFIG_HID is not set
 # CONFIG_USB_SUPPORT is not set