New comment by pullmoll on void-packages repository

https://github.com/void-linux/void-packages/pull/25702#issuecomment-711171515

Comment:
For `arm64-dotconfig` w/ `gcc10` add the following:
```patch
diff --git a/srcpkgs/linux5.9/files/arm64-dotconfig b/srcpkgs/linux5.9/files/arm64-dotconfig
index b2ad8a2005..fd4ebc5087 100644
--- a/srcpkgs/linux5.9/files/arm64-dotconfig
+++ b/srcpkgs/linux5.9/files/arm64-dotconfig
@@ -444,9 +444,11 @@ CONFIG_ARM64_CNP=y
 #
 # ARMv8.3 architectural features
 #
+CONFIG_ARM64_PTR_AUTH=y
 CONFIG_CC_HAS_BRANCH_PROT_PAC_RET=y
 CONFIG_CC_HAS_SIGN_RETURN_ADDRESS=y
 CONFIG_AS_HAS_PAC=y
+CONFIG_AS_HAS_CFI_NEGATE_RA_STATE=y
 # end of ARMv8.3 architectural features
 
 #
@@ -461,6 +463,7 @@ CONFIG_ARM64_TLB_RANGE=y
 # ARMv8.5 architectural features
 #
 CONFIG_ARM64_BTI=y
+CONFIG_ARM64_BTI_KERNEL=y
 CONFIG_CC_HAS_BRANCH_PROT_PAC_RET_BTI=y
 CONFIG_ARM64_E0PD=y
 CONFIG_ARCH_RANDOM=y
```