Revert "arm64: defconfig: Enable LPA2 support"

This reverts commit 5d10165.

This defconfig is very much broken.

Author: marcan

arch/arm64/Kconfig

@@ -1278,7 +1278,9 @@ endchoice
 
 choice
 	prompt "Virtual address space size"
-	default ARM64_VA_BITS_52
+	default ARM64_VA_BITS_39 if ARM64_4K_PAGES
+	default ARM64_VA_BITS_47 if ARM64_16K_PAGES
+	default ARM64_VA_BITS_42 if ARM64_64K_PAGES
 	help
 	  Allows choosing one of multiple possible virtual address
 	  space sizes. The level of translation table is determined by

arch/arm64/configs/defconfig

@@ -76,6 +76,7 @@ CONFIG_ARCH_VEXPRESS=y
 CONFIG_ARCH_VISCONTI=y
 CONFIG_ARCH_XGENE=y
 CONFIG_ARCH_ZYNQMP=y
+CONFIG_ARM64_VA_BITS_48=y
 CONFIG_SCHED_MC=y
 CONFIG_SCHED_SMT=y
 CONFIG_NUMA=y