5.8.10 fixes (#2217)

* Update 0001-bootsplash.patch

dummyblit.c from patch/misc-001 will not compile with 5.8.10--

Change dummy_cursor  declaration in dummyblit.c in misc-001 to match changes in fbcon.h  see
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/video/fbdev/core/fbcon.h?h=v5.8.10&id=ffa74c8e58b8f42b2d95b29443befba2e28fb260

* Import bootsplash fix for kernel 5.8.10 from #2210 20a56315805232097bd2e73adef4fb73cc85caac

* simplifying assumption to kernel 5.8... will need ot make sure we patch up to 5.8.10

* corrected 5.8 bootsplash workaround

Co-authored-by: belfastraven <marti.packer@gmail.com>

lib/compilation-prepare.sh

@@ -78,8 +78,8 @@ compilation_prepare()
 	if linux-version compare "${version}" ge 5.4; then
 
 		display_alert "Adding" "Kernel splash file" "info"
-		if linux-version compare "${version}" lt 5.8; then
-			process_patch_file "${SRC}/patch/misc/0001-bootsplash-pre-5.8.10.patch" "applying"
+		if linux-version compare "${version}" ge 5.8 && linux-version compare "${version}" lt 5.9 ; then
+			process_patch_file "${SRC}/patch/misc/0001-bootsplash-5.8.patch" "applying -- assumes patchlevel 5.8.10 or above"
                 else
 			process_patch_file "${SRC}/patch/misc/0001-bootsplash.patch" "applying"
                 fi

patch/misc/0001-bootsplash-5.8.patch

@@ -581,7 +581,7 @@ index 000000000000..8c22ff92ce24
 +}
 +
 +static void dummy_cursor(struct vc_data *vc, struct fb_info *info, int mode,
-+			int softback_lines, int fg, int bg)
++			 int fg, int bg)
 +{
 +	;
 +}

patch/misc/0001-bootsplash.patch

@@ -581,7 +581,7 @@ index 000000000000..8c22ff92ce24
 +}
 +
 +static void dummy_cursor(struct vc_data *vc, struct fb_info *info, int mode,
-+			 int fg, int bg)
++			int softback_lines, int fg, int bg)
 +{
 +	;
 +}