treewide: replace AUTORELEASE with real PKG_RELEASE

Based on Paul Fertser <fercerpav@gmail.com>'s guidance:
Change AUTORELEASE in rules.mk to:
```
AUTORELEASE = $(if $(DUMP),0,$(shell sed -i "s/\$$(AUTORELEASE)/$(call commitcount,1)/" $(CURDIR)/Makefile))
```

then update all affected packages by:
```
for i in $(git grep -l PKG_RELEASE:=.*AUTORELEASE | sed 's^.*/\([^/]*\)/Makefile^\1^';);
do
	make package/$i/clean
done
```

Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>

package/utils/bcm27xx-userland/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=bcm27xx-userland
 PKG_VERSION:=c4fd1b8986c6d6d4ae5cd51e65a8bbeb495dfa4e
-PKG_RELEASE:=$(AUTORELEASE)
+PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://codeload.github.com/raspberrypi/userland/tar.gz/$(PKG_VERSION)?

package/utils/dtc/Makefile

@@ -6,7 +6,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=dtc
 PKG_VERSION:=1.7.0
-PKG_RELEASE:=$(AUTORELEASE)
+PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_HASH:=29edce3d302a15563d8663198bbc398c5a0554765c83830d0d4c0409d21a16c4

package/utils/ugps/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ugps
-PKG_RELEASE:=$(AUTORELEASE)
+PKG_RELEASE:=2
 
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/ugps.git
 PKG_SOURCE_PROTO:=git