[openwrt/openwrt] kernel: add missing symbol for bcm27xx

[LEDE Commits]

stintel pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/efd9463dcfe27681879d18e5fd9a32351447aa25

commit efd9463dcfe27681879d18e5fd9a32351447aa25
Author: Stijn Tintel <stijn at linux-ipv6.be>
AuthorDate: Tue May 17 20:50:31 2022 +0300

    kernel: add missing symbol for bcm27xx
    
    When KERNEL_PERF_EVENTS is enabled in OpenWrt, the RPI_AXIPERF symbol is
    exposed. Add a build option for it to fix build failures with
    KERNEL_PERF_EVENTS enabled.
    
    Fixes: 20ea6adbf199 ("bcm27xx: add support for linux v5.15")
    Signed-off-by: Stijn Tintel <stijn at linux-ipv6.be>
---
 config/Config-kernel.in | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/config/Config-kernel.in b/config/Config-kernel.in
index 5e12ddd78d..4106d92498 100644
--- a/config/Config-kernel.in
+++ b/config/Config-kernel.in
@@ -81,6 +81,11 @@ config KERNEL_PROFILING
 	  Enable the extended profiling support mechanisms used by profilers such
 	  as OProfile.
 
+config KERNEL_RPI_AXIPERF
+	bool "Compile the kernel with RaspberryPi AXI Performance monitors"
+	default y
+	depends on KERNEL_PERF_EVENTS
+
 config KERNEL_UBSAN
 	bool "Compile the kernel with undefined behaviour sanity checker"
 	help