Rename kernel 4.16 patch to better understand its purpose

This patch is for systems with encrypted memory support enabled, more info by loqs here:
https://bbs.archlinux.org/viewtopic.php?pid=2073931#p2073931

.SRCINFO

@@ -9,7 +9,7 @@ pkgbase = nvidia-390xx-utils
 	source = nvidia-390xx-utils.sysusers
 	source = nvidia-390xx.rules
 	source = https://us.download.nvidia.com/XFree86/Linux-x86_64/390.157/NVIDIA-Linux-x86_64-390.157.run
-	source = kernel-4.16.patch
+	source = kernel-4.16+-memory-encryption.patch
 	b2sums = 8e24aea70b139185bd682b080d32aeda673e6e92b45a90e6f6e0d736674180400bc8bd1aa5c66b8d033fc9d5e0cfffed456a87298bd93a3afbbc30b8dc48c4e9
 	b2sums = c1da4ce5784e43385465913a95053a3e54f800aac6f1b49f33e2a77504d76da5e6db6ec7074fbe7ba5f52dcef9e1ebaa620942c33ff825a56caba5c9c8b0d1be
 	b2sums = 67e32932eeddda8fef667d25c34faf7b3a02f01cf9c15a97e5613bd44a0e8dcf7396e25399a52701f55dd18054c689720f237bb07d5bd580394d8dc8c9d05534

PKGBUILD

@@ -18,7 +18,7 @@ source=('nvidia-drm-outputclass.conf'
         'nvidia-390xx-utils.sysusers'
         'nvidia-390xx.rules'
         "https://us.download.nvidia.com/XFree86/Linux-x86_64/${pkgver}/${_pkg}.run"
-        kernel-4.16.patch)
+        kernel-4.16+-memory-encryption.patch)
 b2sums=('8e24aea70b139185bd682b080d32aeda673e6e92b45a90e6f6e0d736674180400bc8bd1aa5c66b8d033fc9d5e0cfffed456a87298bd93a3afbbc30b8dc48c4e9'
         'c1da4ce5784e43385465913a95053a3e54f800aac6f1b49f33e2a77504d76da5e6db6ec7074fbe7ba5f52dcef9e1ebaa620942c33ff825a56caba5c9c8b0d1be'
         '67e32932eeddda8fef667d25c34faf7b3a02f01cf9c15a97e5613bd44a0e8dcf7396e25399a52701f55dd18054c689720f237bb07d5bd580394d8dc8c9d05534'
@@ -44,7 +44,7 @@ prepare() {
 
     # Restore phys_to_dma support (still needed for 390.138)
     # From loqs via https://bugs.archlinux.org/task/58074
-    patch -Np1 -i ../kernel-4.16.patch
+    patch -Np1 -i ../kernel-4.16+-memory-encryption.patch
 
     cd kernel
     sed -i "s/__VERSION_STRING/${pkgver}/" dkms.conf