package/strace: xtensa needs headers >= 5.0

xtensa support needs user_pt_regs since version 5.6 and
https://github.com/strace/strace/commit/2429c69961e2598902bded9c02dd601b362b66b4

However user_pt_regs is only available since kernel 5.0 and
https://github.com/torvalds/linux/commit/06fbac8e8971f2fa526e189304dd95ee62f39dbe

Fixes:
 - http://autobuild.buildroot.org/results/c6c4fb3b9098c5fc5dbe4415e2a9757fc775b746

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/strace/Config.in

@@ -2,6 +2,8 @@ config BR2_PACKAGE_STRACE
 	bool "strace"
 	# needs at least kernel headers 4.0 on nios2
 	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0 || !BR2_nios2
+	# needs at least kernel headers 5.0 on xtensa
+	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_0 || !BR2_xtensa
 	depends on !BR2_nds32 && !BR2_RISCV_32
 	help
 	  A useful diagnostic, instructional, and debugging tool.
@@ -16,3 +18,7 @@ config BR2_PACKAGE_STRACE
 comment "strace needs a toolchain w/ headers >= 4.0 on nios2"
 	depends on BR2_nios2
 	depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
+
+comment "strace needs a toolchain w/ headers >= 5.0 on xtensa"
+	depends on BR2_xtensa
+	depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_0