unix/linux: update to Linux Kernel 5.16

Change-Id: I83f84e8aa6f75fc2a6fd1744546e8dc3d5bc3a55
Reviewed-on: https://go-review.googlesource.com/c/sys/+/377134
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matt Layher <mdlayher@gmail.com>
diff --git a/unix/zerrors_linux_amd64.go b/unix/zerrors_linux_amd64.go
index ead3320..58619b7 100644
--- a/unix/zerrors_linux_amd64.go
+++ b/unix/zerrors_linux_amd64.go
@@ -251,6 +251,8 @@
 	RTC_EPOCH_SET                    = 0x4008700e
 	RTC_IRQP_READ                    = 0x8008700b
 	RTC_IRQP_SET                     = 0x4008700c
+	RTC_PARAM_GET                    = 0x40187013
+	RTC_PARAM_SET                    = 0x40187014
 	RTC_PIE_OFF                      = 0x7006
 	RTC_PIE_ON                       = 0x7005
 	RTC_PLL_GET                      = 0x80207011
@@ -328,6 +330,7 @@
 	SO_RCVTIMEO                      = 0x14
 	SO_RCVTIMEO_NEW                  = 0x42
 	SO_RCVTIMEO_OLD                  = 0x14
+	SO_RESERVE_MEM                   = 0x49
 	SO_REUSEADDR                     = 0x2
 	SO_REUSEPORT                     = 0xf
 	SO_RXQ_OVFL                      = 0x28